AskDefine | Define subsonic

Dictionary Definition

subsonic adj : (of speed) less than that of sound in a designated medium; "aircraft flying at subsonic speeds" [ant: supersonic, sonic]

User Contributed Dictionary




  1. In the context of "of a sound": having a frequency too low to be audible
  2. In the context of "of a speed": less than the speed of sound (in the same medium, and at the same temperature and pressure)


See also

Extensive Definition

Subsonic may refer to:
  • Any speed lower than the speed of sound within a sound propagating medium is called subsonic.
    • Aircraft flight at airspeeds lower than the speed of sound in air is subsonic flight.
In computing
subsonic in Simple English: Subsonic
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