subsonic
English
Etymology
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) 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
Translations
(of a speed) less than the speed of sound
|
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, n (feminine singular subsonică, masculine plural subsonici, feminine and neuter plural subsonice)
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 | |||
Synonyms
- subacustic
Antonyms
- hipersonic
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