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Definition of "supersonic" [su•per•son•ic]

  • Having, caused by, or relating to a speed greater than the speed of sound in a given medium, especially air. (adjective)
  • Of or relating to sound waves beyond human audibility. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "supersonic" in a sentence
  • "It is then repeated several times, and I realise what we are hearing is not rockets, but planes - very loud and incredibly fast, making me think of the term supersonic, if that even means anything outside of comics."
  • "Iran test-fired what it calls a supersonic ballistic surface-to-sea missile today in a dramatic ceremony that saw the missile crash into a ship that went up in smoke."
  • "The Institute, looking further into the future, is investigating the problems likely to be encountered in supersonic flight."