English Explanatory Dictionary

subsonic

English dictionary entry

Meanings

adj
  1. having a frequency too low to be audible
  2. very quiet, almost inaudible
  3. (aviation) less than the speed of sound (in the same medium, and at the same temperature and pressure)
  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

Pronunciation

LL-Q1860 (eng)-Vealhurl-subsonic.wav

Word forms

subsonic subsonics

Etymology

From sub- + sonic.

Related words

hypersonic plasmasonic supersonic transonic

Derived words

subsonically
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