n.
Pronunciation: ' a-kr ə - ˌ nim
Function: noun
Etymology: acr- + -onym
Date: 1943
: a word (as NATO, radar, or snafu ) formed from the initial letter or letters of each of the successive parts or major parts of a compound term also : an abbreviation (as FBI ) formed from initial letters : INITIALISM
– ac · ro · nym · ic \ ˌ a-kr ə - ' ni-mik \ adjective
– ac · ro · nym · i · cal · ly \ -mi-k( ə -)l ē \ adverb