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transonic

[ tran-son-ik ]

adjective

, Chiefly Aeronautics.
  1. close to the speed of propagation of sound; moving at 700–780 miles per hour (1127–1255 km/h) at sea level.


transonic

/ trænˈsɒnɪk /

adjective

  1. of or relating to conditions when travelling at or near the speed of sound


transonic

/ trăn-sŏnĭk /

  1. Relating to or capable of speeds at or near the speed of sound (at or approaching Mach 1) or to aerodynamic conditions for bodies travelling at such speeds.
  2. Compare hypersonic


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Word History and Origins

Origin of transonic1

First recorded in 1940–45; trans- + sonic

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transom windowtransonic barrier