subsonic

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++

Related topics: Transport, Measurement

sub·son·ic /ˌsʌbˈsɒnɪk◂ $ -ˈsɑː-/ adjective  TTTMslower than the speed of sound 亚音速的 → supersonic

Examples from the Corpus

subsonic• subsonic aircraft• A lot of dance music is using sub bass, subsonic sounds.• Sure enough, he could make out the same almost subsonic throbbing as he had heard earlier.

sub·son·ic adjectiveChineseSyllable  

of sound the slower speed than Corpus

subsonic
sub‧son‧ic /ˌsʌbˈsɒnɪk◂ $ -ˈsɑː-/ adjective
slower than the speed of sound ⇨ supersonic

sub·son·icBrE /ˌsʌbˈsɒnɪk/ 🔊NAmE /ˌsʌbˈsɑːnɪk/ 🔊 adjectiveless than the speed of sound; flying at less than the speed of sound 亚声速的；亚声速飞行的  ➡  compare supersonic