CINXE.COM

<!Doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>Abbreviations and acronyms dictionary</title> <meta name="description" content="Acronym Finder is the largest and most trusted database of over 4 million acronyms and abbreviations. What does an abbreviation stands for? The answer is here"> <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0"> <meta http-equiv="content-language" content="en-us"> <link rel="P3Pv1" href="https://www.acronymattic.com/w3c/p3p.xml"> <base href="https://www.acronymattic.com/"> <link rel="shortcut icon" type="image/x-icon" href="favicon-aa.ico"> <link rel="icon" sizes="32x32" type="image/x-icon" href="favicon-aa.ico"> <link rel="icon" sizes="192x192" type="image/x-icon" href="/~/st/i/Acronym-Attic-192.png"> <style type="text/css"> .search-main:after,.social-list:after{content:"";display:table;clear:both} /* Common ===== */ /* Image Replacement */ .ir{display:block;position:relative;overflow:hidden} .ir span{display:block;position:absolute;width:100%;height:100%;top:0;left:0;z-index:1} /* Reset ===== */ article,aside,details,footer,header,hgroup,main,nav,section,summary{display:block} a{background:transparent} a:active,a:hover{outline:0} abbr[title]{border-bottom:1px dotted} img{border:0} button,input,optgroup,select,textarea{margin:0} button,html input[type="button"],input[type="reset"],input[type="submit"]{-webkit-appearance:button;cursor:pointer} button[disabled],html input[disabled]{cursor:default} button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0} input{line-height:normal} input[type="checkbox"],input[type="radio"]{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;padding:0} table{border-collapse:collapse;border-spacing:0} td,th{padding:0} /* Core CSS ===== */ *{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box} *:before,*:after{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box} html{font-size:10px;-webkit-tap-highlight-color:transparent;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} body{margin:0;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:14px;line-height:1.42857;color:#35404F;background-color:white} input,button,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit} a{color:#428bca;text-decoration:none} a:hover,a:focus{color:#2a6496;text-decoration:underline} a:focus{outline:thin dotted;outline:5px auto -webkit-focus-ring-color;outline-offset:-2px} img{vertical-align:middle} h1,.h1{margin:0 0 5px 0;font-size:29px;font-weight:300;color:#E45F56} h2,.h2{font-size:25px} h3,.h3{font-size:22px} h4,.h4{font-size:18px} h5,.h5{font-size:14px} h6,.h6{font-size:12px} p{margin:0 0 10px} small{font-size:85%} mark,.mark{background-color:#fcf8e3;color:#000;padding:.2em} ul,ol{margin-top:0;margin-bottom:10px} ul ul,ul ol,ol ul,ol ol{margin-bottom:0} .list-unstyled{padding-left:0;list-style:none} dl{margin-top:0;margin-bottom:20px} dt,dd{line-height:1.42857} dt{font-weight:bold} dd{margin-left:0} abbr[title],abbr[data-original-title]{cursor:help;border-bottom:1px dotted #777777} .container{padding-left:15px;padding-right:15px} .container:before,.container:after{content:" ";display:table} .container:after{clear:both} .container-fluid{margin-right:auto;margin-left:auto;padding-left:15px;padding-right:15px} .container-fluid:before,.container-fluid:after{content:" ";display:table} .container-fluid:after{clear:both} .row{margin-left:-15px;margin-right:-15px} .row:before,.row:after{content:" ";display:table} .row:after{clear:both} th{text-align:left} .table{width:100%;max-width:100%;margin-bottom:20px} .table>thead>tr>th,.table>thead>tr>td,.table>tbody>tr>th,.table>tbody>tr>td,.table>tfoot>tr>th,.table>tfoot>tr>td{padding:8px;line-height:1.42857;vertical-align:top;border-top:1px solid #dddddd} .table>thead>tr>th{vertical-align:bottom;border-bottom:2px solid #dddddd} .table>caption + thead>tr:first-child>th,.table>caption + thead>tr:first-child>td,.table>colgroup + thead>tr:first-child>th,.table>colgroup + thead>tr:first-child>td,.table>thead:first-child>tr:first-child>th,.table>thead:first-child>tr:first-child>td{border-top:0} .table>tbody + tbody{border-top:2px solid #dddddd} .table .table{background-color:white} .table-striped>tbody>tr:nth-child(odd)>td,.table-striped>tbody>tr:nth-child(odd)>th{background-color:#f9f9f9} fieldset{padding:0;margin:0;border:0;min-width:0} label{display:inline-block;max-width:100%;margin-bottom:5px;font-weight:bold} input[type="radio"],input[type="checkbox"]{margin:4px 0 0;margin-top:1px \9;line-height:normal} input[type="radio"]:focus,input[type="checkbox"]:focus{outline:thin dotted;outline:5px auto -webkit-focus-ring-color;outline-offset:-2px} .form-control{display:block;width:100%;height:34px;padding:6px 12px;font-size:14px;line-height:1.42857;color:#555555;background-color:white;background-image:none;border:1px solid #cccccc;border-radius:4px;-webkit-box-shadow:inset 0 1px 1px rgba(0,0,0,0.075);box-shadow:inset 0 1px 1px rgba(0,0,0,0.075);-webkit-transition:border-color ease-in-out 0.15s,-webkit-box-shadow ease-in-out 0.15s;transition:border-color ease-in-out 0.15s,box-shadow ease-in-out 0.15s} .form-control:focus{border-color:#66afe9;outline:0;-webkit-box-shadow:inset 0 1px 1px rgba(0,0,0,0.075),0 0 8px rgba(102,175,233,0.6);box-shadow:inset 0 1px 1px rgba(0,0,0,0.075),0 0 8px rgba(102,175,233,0.6)} .form-control::-moz-placeholder{color:#777777;opacity:1} .form-control:-ms-input-placeholder{color:#777777} .form-control::-webkit-input-placeholder{color:#777777} .form-group{margin-bottom:15px} .btn{display:inline-block;margin-bottom:0;font-weight:normal;text-align:center;vertical-align:middle;cursor:pointer;background-image:none;border:1px solid transparent;white-space:nowrap;padding:6px 12px;font-size:14px;line-height:1.42857;border-radius:4px;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none} .btn:focus,.btn:active:focus,.btn.active:focus{outline:thin dotted;outline:5px auto -webkit-focus-ring-color;outline-offset:-2px} .btn:hover,.btn:focus{color:#333333;text-decoration:none} .btn:active,.btn.active{outline:0;background-image:none;-webkit-box-shadow:inset 0 3px 5px rgba(0,0,0,0.125);box-shadow:inset 0 3px 5px rgba(0,0,0,0.125)} .btn-primary{color:white;background-color:#428bca;border-color:#357ebd} .btn-primary:hover,.btn-primary:focus,.btn-primary:active{color:white;background-color:#3071a9;border-color:#285e8e} /* Bootstrap Components ===== */ .nav{margin-bottom:0;padding-left:0;list-style:none} .nav:before,.nav:after{content:" ";display:table} .nav:after{clear:both} .nav>li{position:relative;display:block} .nav>li>a{position:relative;display:block;padding:10px 15px} .nav>li>a:hover,.nav>li>a:focus{text-decoration:none;background-color:#eeeeee} .nav>li.disabled>a{color:#777777} .nav>li.disabled>a:hover,.nav>li.disabled>a:focus{color:#777777;text-decoration:none;background-color:transparent;cursor:not-allowed} .tab-content>.tab-pane{display:none} .tab-content>.active{display:block} .navbar{position:relative;min-height:50px;margin-bottom:20px;border:1px solid transparent} .navbar:before,.navbar:after{content:" ";display:table} .navbar:after{clear:both} @media (min-width:760px){.navbar{border-radius:4px}} .navbar-text{margin-top:15px;margin-bottom:15px} @media (min-width:760px){.navbar-text{float:left;margin-left:15px;margin-right:15px} .navbar-text.navbar-right:last-child{margin-right:0}} .pager{padding-left:0;margin:20px 0;list-style:none;text-align:center} .pager:before,.pager:after{content:" ";display:table} .pager:after{clear:both} .pager li{display:inline} .pager li>a,.pager li>span{display:inline-block;padding:5px 14px;background-color:white;border:1px solid #dddddd;border-radius:15px} .pager li>a:hover,.pager li>a:focus{text-decoration:none;background-color:#eeeeee} .pager .next>a,.pager .next>span{float:right} .pager .previous>a,.pager .previous>span{float:left} .pager .disabled>a,.pager .disabled>a:hover,.pager .disabled>a:focus,.pager .disabled>span{color:#777777;background-color:white;cursor:not-allowed} @-ms-viewport{width:device-width} .visible-xs{display:none !important} @media (max-width:759px){.visible-xs{display:block !important} table.visible-xs{display:table} tr.visible-xs{display:table-row !important} th.visible-xs,td.visible-xs{display:table-cell !important}} @media (max-width:759px){.hidden-xs{display:none !important}} /* Scaffolding ===== */ body{color:#35404F;background-color:#f1f1f1} a{color:#4AAAA5;text-decoration:none} a:hover,a:focus{color:#3D8C87;text-decoration:underline} mark{padding:2px;font-weight:bold;background:#fff9d5;color:#848484} .content-wrapper{background:#fff;-webkit-box-shadow:#ebebeb 0 0 10px;box-shadow:#ebebeb 0 0 10px;padding:20px 0} .container{position:relative;max-width:1000px} .text-content{max-width:100%;padding:0;margin:25px 0} .leftblock{display:block;float:left;margin:0 320px 0 0;width:auto} div.aside{margin-left:-100%;float:right} .form-control,.btn{border-radius:0} .btn-primary{background-color:#A3D39C;border-color:#A3D39C} .table>thead>tr>th,.table>tbody>tr>th,.table>tfoot>tr>th,.table>thead>tr>td,.table>tbody>tr>td,.table>tfoot>tr>td{padding:14px 10px;border:1px solid #e7e7e7;border-left:none;border-right:none} .col-2{display:inline-block;vertical-align:top;width:48%;font-size:13px} .col-2 .col-left{padding-right:30px} @media (max-width:760px){.content-wrapper{padding:15px 0} .container{padding-left:0;padding-right:0} .text-content{padding:0 2px;margin:10px 0} .leftblock{margin-right:0;float:none} div.aside{margin-left:0;float:none} .row{margin-left:0;margin-right:0} .row [class^=col-]{padding-left:0;padding-right:0} .col-2{display:block;width:100%} .col-2 .col-left{padding-right:0}} /* ===== Components ===== */ /* Navigation ===== */ .navigation{margin-bottom:0;font-size:13px;color:#848484;background:#373737;border:none;border-radius:0} .navbar-link{padding:2px 10px} .navbar-link,.navbar-link:hover{color:#848484} .navbar-link:hover{text-decoration:underline} .navigation__socials,.navigation__menu{float:right} .navigation__socials{margin-bottom:0} .navigation__menu{margin-top:17px} @media (max-width:760px){.navigation{position:absolute;top:60px;left:0;width:100%;z-index:100;background:#6f6f6f} .navbar-text{margin:0;padding:10px} .navigation__socials,.navigation__menu{float:none} .navigation__menu{padding:0;margin:0} .navigation__menu a{padding:10px;display:block;border-top:1px solid #bcbcbc} .navigation__menu a,.navigation__menu a:hover{color:#fff}} .ie8 .navbar-right{float:right !important} /* Main search ===== */ .search-main{color:#555555} .search-main .form-control{width:220px} .search-main .form-group{margin-left:10px} .search-main .btn-submit{margin-left: 5px;padding-top:0;padding-bottom:0;height:34px;line-height:34px} .search-main__options{padding-left:15px; margin:0;font-size:13px;padding-top:7px} .search-main__options li{padding-right:7px;display:inline-block;white-space:nowrap} .search-main__options li label{white-space:nowrap;padding-left:2px;font-weight:normal} .search-main__item{display: block;float: left;margin: 0} .search-main__label{padding-top: 7px} .search-main__tip{padding:8px;margin:24px 0 0;border-radius:5px;font-size:12px;color:#848484;background:#e6e6e6} .aa .search-main__tip{ width: 441px;} .aa a>abbr, .aa a>strong>abbr {border-bottom: none;cursor: pointer;} @media (max-width:960px){.search-main__options{padding-top:0;padding-left:165px;margin-top:10px}} @media (max-width:760px){.search-main{position:absolute;top:60px;left:0;right:0;padding:16px 10px;z-index:100;background:#6f6f6f;color:#fff} .search-main .search-main__label{display:block;margin-bottom:10px} .search-main .form-group{margin:0;padding:0;float:left;width:78%} .search-main .form-control{width:100%} .search-main .btn-submit{float:left;margin-left:10px} .search-main .search-main__options{clear:both;margin:0;padding-left:0;width:100%} .search-main .search-main__options li{display:block;margin:0;padding:10px 0 0} .search-main__tip{display:none}} /* Acronym ===== */ .acronym{margin:4px 0 23px} .acronym strong{font-weight:500} .acronym__search{margin:0;color:#848484;font-size:16px;font-weight:300} .acronym__search--big{font-size:22px} .acronym__title{margin:0 0 5px 0;font-size:29px;font-weight:300;color:#E45F56} @media (max-width:760px){.acronym{padding-left:10px;padding-right:10px;margin:0px 0 8px} .acronym__title{font-size:21px} .acronym__search{font-size:14px}} /* Citation ===== */ .citation__link__col {display:inline;position:relative;top:-5px;left:20px} @media (max-width:760px){.citation__link__col{margin-top:5px;display:block;position:inherit;top:0}} /* Pager ===== */ .pager{padding:10px 0;background:#f7f7f7;border:1px solid #e7e7e7;border-left:none;border-right:none} .pager li>a,.pager li>span{font-weight:bold;border:none} .pager li>a,.pager li>a:hover,.pager li>span,.pager li>span:hover{background:transparent} /* Result list ===== */ .result-list{margin:0;border-top:1px solid #e7e7e7} .result-list thead tr th{border-bottom:2px solid #e7e7e7} .result-list__header__rank{width:100px;text-align:right} .result-list__header__icon{width:30px} .result-list__cta{display:block;width:30px;height:20px;font:0/0 a;background:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABUAAAAUBAMAAACQZWsAAAAAJFBMVEUAAACcnMZjWmu9tc7Ozuc5OVKEhJze5+//azHWe2v/vZT39frdFURkAAAAAXRSTlMAQObYZgAAAJVJREFUCNdjAAPmJDUDBghgUVVLCnKAsJkUXQSTFCDsJPMSQUElCDus3FDYMNUArDO4RNDE2TQBxGZTNBR2L3EFsxkDBUXct0PYLGGCJt7bRQXAeoMEhd2LlRzA6lPVhE2EgsHCk1JDlZSCwEZyrlJNUw1KAQvPWtEIoiDCHVOAFFS4E0lYAMa2BKqGi3cYMMDBZDgLADpCHgvLLRv4AAAAAElFTkSuQmCC) no-repeat;/*loupe.png*/} .result-list__body__rank{text-align:right;white-space:nowrap} .r0:before,.r1:before,.r2:before,.r3:before,.r4:before,.r5:before {content:"";display:inline-block;width:45px;height:9px;margin-right:5px;background-image:url(data:image/png;base64,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)} .r1:before{background-position:-9px 0} .r2:before{background-position:-18px } .r3:before{background-position:-27px 0} .r4:before{background-position:-36px } .r5:before{background-position:-45px 0} /* Social list ===== */ .social-list{width:300px;overflow:hidden} .social-list>div{float:right !important} @media (max-width:760px){.social-list{width:270px} .social-list>div{float:none !important}} .fb-like-wrapper{width:160px;height:25px;display:inline-block;vertical-align:top} /* Samples list ===== */ .samples-list{margin-top:20px} .samples-list--push{margin-bottom:20px} .samples-list__title{padding:17px 10px;margin:0 0 20px 0;font-size:14px;font-weight:bold;background:#f7f7f7;border:1px solid #e7e7e7;border-left:none;border-right:none} .samples-list__item{margin-top:25px;padding:0 20px} .samples-list__item:first-child{margin-top:0} .samples-list__item__footer{margin-top:5px} /* Navigation buttons ===== */ .navigation-button{position:relative;display:block;width:60px;height:60px;padding:0;margin:0;border:none;background:transparent} .navigation-button:hover,.navigation-button:focus{outline:none} .navigation-button span{position:absolute;display:block;width:36px;height:36px;top:50%;left:50%;margin:-18px 0 0 -18px;background:url(data:image/png;base64,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) no-repeat;/*navigation-buttons.png*/font:0/0 a;text-shadow:none;color:transparent} .navigation-button__menu{border-right:1px solid #e7e7e7} .navigation-button__menu span{background-position:0 0} .navigation-button__menu.active{background-color:#6f6f6f} .navigation-button__menu.active span{background-position:0 -36px} .navigation-button__search{border-left:1px solid #e7e7e7} .navigation-button__search span{background-position:-36px 0} .navigation-button__search.active{background-color:#6f6f6f} .navigation-button__search.active span{background-position:-36px -36px} @media (max-width:760px){.navigation-button{position:absolute;top:0;z-index:100} .navigation-button__menu{left:0} .navigation-button__search{right:0}} /* Tabs ==== */ .tabs{margin-bottom:0;padding-left:0;list-style:none;display:table;width:100%;table-layout:fixed;font-size:12px;background:-webkit-gradient(linear, left top, left bottom, from(white), to(#f7f7f7));background:-webkit-linear-gradient(white, #f7f7f7);background:linear-gradient(white, #f7f7f7)} .tabs>li{position:relative;float:none;display:table-cell;border-bottom:1px solid #e7e7e7} .tabs>li.active{border:1px solid #e7e7e7;background:#fff;border-bottom-color:#fff;color:#000} .tabs__item{position:relative;display:block;padding:7px;color:#555555} a.tabs__item{color:#4AAAA5} @media (max-width: 760px){ .tabs{display:block;font-size:14px;background:#f7f7f7;border-bottom:1px solid #e7e7e7} .tabs>li{display:none;border:none} .tabs>li.active{display:block;font-weight:bold;border:none;background:transparent} .tabs .no-link{width:100%;display:block} .tabs__item{padding:10px} } /* ===== Modules ===== */ /* Main header ===== */ .header-main{position:relative;padding:30px 0} .header-main>.container{padding-left:195px} .site-name{position:absolute;top:50%;left:15px;margin-top:-25px;width:152px;height:50px;font:0/0 a;text-shadow:none;color:transparent} .site-name span{background:url(/~/st/i/logo-desktop-aa.png) no-repeat;} @media (max-width:760px){.header-wrapper{position:relative} .header-main{height:60px;padding:0} .header-main>.container{height:60px;padding-left:0} .site-name{width:111px;height:36px;top:50%;left:50%;margin-left:-55px;margin-top:-18px} .site-name span{background:url(/~/st/i/logo-mobile-aa.png) no-repeat;}} /* Main footer ===== */ .footer-main{padding:40px 0;text-align:center;color:#848484} .footer-main__alphabet__list{display:inline} .footer-main__alphabet__list .a_named{font-weight:bold} .footer-main__alphabet #index2{padding:10px 0;clear:both;} @media (min-width:761px){.footer-main__alphabet #index2 A:before{content:"●";display:inline-block;margin-right:4px} .footer-main__alphabet #index2 A:first-child:before{display:none}} .footer-main__item-disc{margin:24px 0 2px;line-height:1.8} .footer-main__item-copy p{margin-bottom:2px} .footer-main__menu{padding:3px 0} .footer-main__menu ul{margin:0;padding:0} .footer-main__menu li{position:relative;display:inline-block;padding:2px 6px 2px 10px} .footer-main__menu li:before{content:"";display:block;position:absolute;width:1px;height:12px;top:50%;left:0;margin-top:-6px;background:#373737} .footer-main__menu li:first-child:before{display:none} @media (max-width:760px){.footer-main{padding-top:0} .footer-main .container{padding:0} .footer-main__menu--primary{text-align:left;border-top:1px solid #e7e7e7} .footer-main__menu--primary li{display:block;padding:0} .footer-main__menu--primary li a{display:block;padding:10px;border-bottom:1px solid #e7e7e7} .footer-main__menu--primary li:before{display:none} .footer-main__alphabet{padding:0 10px} .footer-main__alphabet:after{display:table;content:"";clear:both} .footer-main__alphabet a{float:left;display:block;width:40px;height:40px;border:1px solid #e7e7e7;text-align:center;line-height:40px;margin-top:-1px;margin-left:-1px} .footer-main__alphabet__title{position:relative;display:block;padding:10px 0;text-align:left;cursor:pointer} .footer-main__alphabet__title:before{display:block;content:"";position:absolute;top:50%;right:0;font-size:0px;line-height:0%;width:0px;border-bottom:8px solid #818181;border-left:6px solid transparent;border-right:6px solid transparent;margin-top:-3px} .footer-main__alphabet__title.active:before{border-bottom:none;border-top:8px solid #818181;border-left:6px solid transparent;border-right:6px solid transparent} .footer-main__alphabet__list{display:block;padding-bottom:10px} .footer-main__alphabet__list:after{display:table;content:"";clear:both} .footer-main__item-disc,.footer-main__item-copy{line-height:1.6} .footer-main__item-disc{margin-bottom:16px;margin-top:16px}} /* Database surfer ===== */ .database-surfer__list{list-style:none;margin:0;text-align:center;float:left;width:25%} .database-surfer__list li{padding:5px 0} .database-surfer__list--big{width:50%;padding:0 15px} .database-surfer--push{margin-bottom:20px} .database-surfer--leftaligned .database-surfer__list{text-align:left} @media (max-width:760px){.database-surfer .pager .title{display:block} .database-surfer__list{width:50%} .database-surfer__list--big{width:100%}} /* Search sumup ===== */ .search-sumup{padding:30px 0;text-align:center} .search-sumup__menu{margin-left:0;padding:0;list-style:none} .search-sumup__menu li{display:inline-block;position:relative;padding:2px 6px 2px 10px} .search-sumup__menu li:before{content:"";display:block;position:absolute;width:1px;height:12px;top:50%;left:0;margin-top:-6px;background:#373737} .search-sumup__menu li:first-child:before{display:none} .search-sumup__word{font-weight:bold;color:#4AAAA5} @media (max-width:760px){.search-sumup{padding:20px 10px}} /* Search results ===== */ .search-results .tabs .no-link{width:70px} .search-results .tabs .no-link .tabs__item{color:#848484} .search-sort{padding:0 10px;margin:15px 0} @media (max-width:760px){.search-results__switcher{position:absolute;top:0;right:0;display:block;padding:0;margin:0;width:40px;height:40px;border:none;background:transparent;outline:none} .search-results__switcher span{display:block;position:absolute;top:50%;right:50%;font-size:0px;line-height:0%;width:0px;border-bottom:8px solid #818181;border-left:6px solid transparent;border-right:6px solid transparent;margin:-3px -3px 0 0} .search-results__switcher.active span{border-bottom:none;border-top:8px solid #818181} .search-results .tabs .no-link{width:100%}} .wp{margin:0 0 8px 0;display:block;overflow:hidden;height:265px;width:300px;line-height:1rem;} #wp1,#wp5,#wp6,#wp7{margin:0 auto;width:100%} #wp1{margin-bottom:12px;height:90px !important}#wp5{background-color:#f1f1f1} .wp-container{padding:0 7px 0 0;overflow:hidden;max-width:100%;display:block;margin:0} .wp-container .right-adblock{display:inline-block;margin:0 0 0 20px} @media (max-width:760px){ .ads-container{padding:0} .ads-container .right-adblock{display:block;width:auto;margin:20px 0 0 0}} /* SAYT ===== */ DIV.sayt{visibility:hidden;position:absolute;border:solid 1px #555555;border-top:none;padding:4px 3px;z-index:21;background-color:white} DIV.sayt A,DIV.sayt A:visited{font-size:13px;color:Black;text-decoration:none} </style>  <script> if (top!=window) top.location=window.location; function dw(t){document.write(t)} function ById(id){return document.getElementById(id)} var isMob=window.innerWidth<760; var AdBlocks = [],afs_pageOptions = null; var info={word:'',canonical:'https://www.acronymattic.com',a:'wp',Domain:'acronymattic.com'}; </script> <meta name="Keywords" content="abbreviation, abbreviations, acronym, acronyms, air force, army, associations, business, chat, coast guard, code, codes, common, communications, compendium, computer, computers, computing, data base, database, decode, decoder, defence, definition, definitions, department of defense, dictionary, directory, education, educational, expand, finance, financial, find, finder, government, health care, healthcare, industry, information technology, initialisms, internet, IRC, IT, jargon, lexicon, lingo, lookup, marines, meaning, meanings, medical, medicine, military, mnemonic, mnemonics, nasa, naval, navy, network, networking, networks, on line, online, on-line, organizations, phrase, phrases, protocols, reference, research, resource, reverse lookup, society, space, systems, technology, telecommunications, terminology, terms, three letter acronym, TLA, translate, translation, translator, usa, usaf, usn"> <link rel="search" type="application/opensearchdescription+xml" title="Acronym Attic" href="https://www.acronymattic.com/~/st/open-search.xml"> <script type="application/ld+json"> { "@context": "http://schema.org", "@type": "WebSite", "url": "https://www.acronymattic.com/", "potentialAction": { "@type": "SearchAction", "target": "https://www.acronymattic.com/~/search/af.aspx?string=exact&Acronym={search_term_string}", "query-input": "required name=search_term_string" } } </script> </head> <body class="aa"> <a href="/~/access/printer-friendly.aspx" style="display:none">Printer friendly</a> <div class="header-wrapper"> <button type="button" class="navigation-button navigation-button__menu visible-xs"><span>Menu</span> </button> <button type="button" class="navigation-button navigation-button__search visible-xs"><span>Search</span> </button> <header class="header-main"> <div class="container"> <a href="/" rel="index" title="Acronym Attic Homepage" class="ir site-name">"AcronymAttic.com<span></span></a> <form class="search-main form-inline hidden-xs" id="main-search" action="/~/search/af.aspx" method="GET" onsubmit="return validate_form(this)"> <fieldset> <label class="search-main__item search-main__label" for="search-main-input">Abbreviation to define</label> <div class="search-main__item form-group"> <input type="text" name="Acronym" maxlength="32" class="form-control" placeholder="Search" id="search-main-input" value="" title="type in an abbreviation or acronym to define" onclick="SAYT.Suggest(this,event)" onkeyup="saveCaret(this);SAYT.Suggest(this,event)" onmouseup="saveCaret(this)" autocomplete=off accesskey=s> </div> <button type="submit" class="search-main__item btn btn-primary btn-submit">Find</button> </fieldset> <p class="search-main__tip"> Examples: <a href="/NFL.html" title="see example results for NFL">NFL</a>, <a href="/NASA.html" title="see example results for NASA">NASA</a>, <a href="/PSP.html" title="see example results for PSP">PSP</a>, <a href="/HIPAA.html" title="see example results for HIPAA">HIPAA</a> </p> </form> </div> </header>  </div> <div class="content-wrapper"> <div class="container" id="content"> <div class="navbar-text navbar-right navigation__socials"> <div class="social-list"> <div style="vertical-align: top" class="fb-like" data-href="http://www.acronymattic.com" data-width="130" data-layout="button_count" data-action="like" data-show-faces="true" data-share="true"></div> <a href="https://twitter.com/share" class="twitter-share-button" data-url="https://www.acronymattic.com">Tweet</a> <script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script> </div> </div> <div class="wp" id="wp1"></div> <style type="text/css" scoped> h2{clear:both;margin:20px 0 0 0;font-size:2rem} blockquote{display:inline-block;width:48%;vertical-align:top;clear:both;padding:10px 0 10px 160px;margin:0} blockquote img{float:left;margin:0 0 0 -160px;opacity:0.5;filter:alpha(opacity=50)} @media (max-width:759px){ .col-2 A{line-height:26px} blockquote{display:block;width:100%} } table.list{width:400px} table.list td{line-height:30px} </style> <div class="text-content"> <h1 class="acronym__title">Welcome to our Acronym Attic</h1> <br /> The preferred site for defining abbreviations is <a href="https://www.acronymfinder.com/">Acronym Finder</a>. For best results, please try Acronym Finder first! <a href="https://www.acronymfinder.com/">Go there now.</a><br> <br /> <a href="https://www.acronymfinder.com/">Acronym Finder</a> <span>is 100% human-edited by paid staff and is the most comprehensive and accurate abbreviation database in the world (maybe even the entire solar system).<br /> <br /> The Acronym Attic is a collection of unreviewed abbreviations and meanings and could have errors, unverified terms, or offensive definitions. </span><a href="/aboutresults.aspx">More...</a><br /> <br /> <h2>What abbreviations have the most meanings? Here is a list of top 20:</h2> <br> <table class="list"> <tr> <td width="20%"> <a href="AAA.html">AAA</a><br> <a href="ABC.html">ABC</a><br> <a href="ACC.html">ACC</a><br> <a href="ACE.html">ACE</a><br> </td> <td width="20%"> <a href="ACS.html">ACS</a><br> <a href="ACT.html">ACT</a><br> <a href="ARC.html">ARC</a><br> <a href="ASA.html">ASA</a><br> </td> <td width="20%"> <a href="CAP.html">CAP</a><br> <a href="CCC.html">CCC</a><br> <a href="COM.html">COM</a><br> <a href="DOC.html">DOC</a><br> </td> <td width="20%"> <a href="III.html">III</a><br> <a href="MAC.html">MAC</a><br> <a href="PAC.html">PAC</a><br> <a href="PDF.html">PDF</a><br> </td> <td width="20%"> <a href="SAS.html">SAS</a><br> <a href="SMS.html">SMS</a><br> <a href="THE.html">THE</a><br> <a href="USA.html">USA</a><br> </td> </tr> </table> </div> <a href="/cdn-cgi/l/email-protection#1067666a647d7a746a777668756061606574267a7322657473776977787a507475767f763e737f7d" style="display:none">email us</a> </div> </div> <footer class="footer-main"> <div class="container"> <div class="footer-main__item"> <nav class="footer-main__alphabet"> <span class="footer-main__alphabet__title" data-collapse-alphabet>Index:</span> <div class="footer-main__alphabet__list hidden-xs" id="alphabet"> <a href="/Index--.html">#</a> <a href="/Index-A.html">A</a> <a href="/Index-B.html">B</a> <a href="/Index-C.html">C</a> <a href="/Index-D.html">D</a> <a href="/Index-E.html">E</a> <a href="/Index-F.html">F</a> <a href="/Index-G.html">G</a> <a href="/Index-H.html">H</a> <a href="/Index-I.html">I</a> <a href="/Index-J.html">J</a> <a href="/Index-K.html">K</a> <a href="/Index-L.html">L</a> <a href="/Index-M.html">M</a> <a href="/Index-N.html">N</a> <a href="/Index-O.html">O</a> <a href="/Index-P.html">P</a> <a href="/Index-Q.html">Q</a> <a href="/Index-R.html">R</a> <a href="/Index-S.html">S</a> <a href="/Index-T.html">T</a> <a href="/Index-U.html">U</a> <a href="/Index-V.html">V</a> <a href="/Index-W.html">W</a> <a href="/Index-X.html">X</a> <a href="/Index-Y.html">Y</a> <a href="/Index-Z.html">Z</a> </div> </nav> </div> <div class="wp" id="wp5" style="text-align:center"></div> <div class="footer-main__item footer-main__item-disc"> Over 3 million unverified definitions of abbreviations and acronyms in Acronym Attic. For verified definitions visit AcronymFinder.com <br>All trademarks/service marks referenced on this site are properties of their respective owners. </div> <div class="footer-main__item footer-main__item-copy"> <p>The <a href="/">Acronym Attic</a> is © 2005-2025, Acronym Finder, All Rights Reserved. <a href="/aboutresults.aspx">About these results</a> </p> <nav class="footer-main__menu"> <ul> <li><a href="//www.acronymfinder.com/terms.htm">Terms of usage</a></li> <li><a href="//www.acronymfinder.com/licensing.htm">Licensing info</a></li> <li><a href="//www.acronymfinder.com/advertising.htm">Advertising info</a></li> <li><a href="//www.acronymfinder.com/privacy.htm">Privacy Policy</a></li> </ul> </nav> </div> </div> </footer> <div class="afs_ads"> </div> <script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script><script async type="text/javascript" src="/~/st/af.js"></script> </body> </html>