Subsonic

Quick meaning: Subsonic is an adjective meaning (of a sound, scientific) having a frequency too low to be audible.

Meaning

(of a sound, scientific) having a frequency too low to be audible.

More Meanings

1. (of a sound, literary) very quiet, almost inaudible
2. (of a speed) (aviation) less than the speed of sound (in the same medium, and at the same temperature and pressure)
3. (fluid mechanics, of a flow) with a Mach number such that 0.3 < Ma < 0.8 (approximately - the exact limits vary between sources)
4. an aircraft whose maximum speed is less than the speed of sound

Example Sentences

The noise of the ship was all around her. The faint subsonic rumble of the reactor and drive. (Leviathan Wakes, James S. A. Corey)

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.

Word Forms

• subsonics

Antonyms for subsonic

Common opposites include transonic, supersonic, sonic.

Related Words

Related dictionary entries include infrasonic, unacoustic, nonaudible, subdetection, nonultrasonic, subeffective.

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