Meaning of ACRONYM in English

ACRONYM

ac ‧ ro ‧ nym /ˈækrənɪm/ BrE AmE noun [countable]

[ Date: 1900-2000 ; Origin: acr- 'beginning, end' (from Greek akr- , from akros ; ⇨ ↑ acrobat ) + -onym (as in homonym ) ]

a word made up from the first letters of the name of something such as an organization. For example, NATO is an acronym for the North Atlantic Treaty Organization.

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.