i Register
In some senses, subsonic is marked as literary. Watch for register when choosing this word.
subsonic
adj 4noun 1
Collocations
3ADJ.
aeronautical, commercial, essential, faint, fastest
SUBSONIC + NOUN
flight, propulsion, rumble
PREP.
across, in
Definitions
adj
1
having a frequency too low to be audible
2
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)
3
(aviation) less than the speed of sound (in the same medium, and at the same temperature and pressure)
But British Airways Flight 112 made the trek in under five hours, setting a new record for the fastest subsonic commercial flight across the Atlantic Ocean.
4
with a Mach number such that 0.3 < Ma < 0.8 (approximately - the exact limits vary between sources)
noun
1
an aircraft whose maximum speed is less than the speed of sound
Thesaurus
Synonyms
Antonyms
Idioms & Phrases
Example Bank
301
The noise of the ship was all around her. The faint subsonic rumble of the reactor and drive. (Leviathan Wakes, James S. A. Corey)
Wiktionary02
But British Airways Flight 112 made the trek in under five hours, setting a new record for the fastest subsonic commercial flight across the Atlantic Ocean.
Wiktionary03
Rotating machines are essential in subsonic aeronautical propulsion.
Tatoeba · #13807550Usage Notes
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