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Subsonic - What does it mean?

subsonic | |

subsonic

Adjective

(-)
  • (of a sound) having a frequency too low to be audible
  • (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).
  • Not English

    has no English definition. It may be misspelled.