SUBSONIC


Meaning of SUBSONIC in English

sub ‧ son ‧ ic /ˌsʌbˈsɒnɪk◂ $ -ˈsɑː-/ BrE AmE adjective

slower than the speed of sound ⇨ supersonic

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