V-for ‧ ma ‧ tion /ˈviː fɔːˌmeɪʃ ə n $ -fɔːr-/ BrE AmE noun [countable]
if birds or planes fly in a V-formation, they form the shape of the letter V as they fly
V-for ‧ ma ‧ tion /ˈviː fɔːˌmeɪʃ ə n $ -fɔːr-/ BrE AmE noun [countable]
if birds or planes fly in a V-formation, they form the shape of the letter V as they fly
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012