[ soo-per-son-ik ]
See synonyms for supersonic on
  1. greater than the speed of sound waves through air.

  2. capable of achieving such speed: a supersonic plane.

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Origin of supersonic

First recorded in 1915–20; super- + sonic

Other words from supersonic

  • su·per·son·i·cal·ly, adverb

Words Nearby supersonic Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use supersonic in a sentence

British Dictionary definitions for supersonic


/ (ˌsuːpəˈsɒnɪk) /

  1. being, having, or capable of reaching a speed in excess of the speed of sound: supersonic aircraft

Derived forms of supersonic

  • supersonically, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for supersonic


[ sōō′pər-sŏnĭk ]

  1. Having a speed greater than that of sound in a designated medium, usually air; having a speed greater than Mach 1. Compare hypersonic subsonic transonic.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.