Contextualizebeta

subsonic

adj

Etymology

From sub- + sonic.

Definitions

  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…

    (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. ›+ 2 more definitions

    1. with a Mach number such that 0.3 < Ma < 0.8 (approximately - the exact limits vary…

      with a Mach number such that 0.3 < Ma < 0.8 (approximately - the exact limits vary between sources)

    2. an aircraft whose maximum speed is less than the speed of sound

The neighborhood

Derived

subsonically

Vish — recursive loop

No curated loop yet for subsonic. Loops are being traced one word at a time while the ingestion pipeline matures.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA