subsonic
English
Etymology
From sub- + sonic.
Pronunciation
- Rhymes: -ɒnɪk
Adjective
subsonic (not comparable)
- (of a sound, scientific) having a frequency too low to be audible
- (of a sound, literary) very quiet, almost inaudible
- The noise of the ship was all around her. The faint subsonic rumble of the reactor and drive. (Leviathan Wakes, James S. A. Corey)
- (of a speed) (aviation) less than the speed of sound (in the same medium, and at the same temperature and pressure)
- (fluid mechanics, of a flow) with a Mach number such that 0.3 < Ma < 0.8 (approximately - the exact limits vary between sources)
Related terms
- hypersonic
- plasmasonic
- supersonic
- transonic
Translations
(of a speed) less than the speed of sound
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Noun
subsonic (plural subsonics)
- an aircraft whose maximum speed is less than the speed of sound
Romanian
Etymology
Borrowed from French subsonique.
Pronunciation
- IPA(key): /subˈso.nik/
Adjective
subsonic m or n (feminine singular subsonică, masculine plural subsonici, feminine and neuter plural subsonice)
- subsonic
- Synonym: subacustic
- Antonym: hipersonic
Declension
declension of subsonic
singular | plural | ||||||
---|---|---|---|---|---|---|---|
masculine | neuter | feminine | masculine | neuter | feminine | ||
nominative/ accusative | indefinite | subsonic | subsonică | subsonici | subsonice | ||
definite | subsonicul | subsonica | subsonicii | subsonicele | |||
genitive/ dative | indefinite | subsonic | subsonice | subsonici | subsonice | ||
definite | subsonicului | subsonicei | subsonicilor | subsonicelor |