• synonyms

laughing gas

See more synonyms for laughing gas on Thesaurus.com
  1. nitrous oxide.
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Origin of laughing gas

First recorded in 1835–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for laughing gas

Historical Examples

  • It felt like laughing-gas; it forced one on, and yet it was so unreal.

    The Pillars of the House, Vol. II (of 2)

    Charlotte M. Yonge

  • I feel as if I had been living on laughing-gas these last two days.


    William Black

  • He was wit-proof and fun-proof; but at a feeble jest would sometimes roar like a lion inflated with laughing-gas.

    Hard Cash

    Charles Reade

  • In these whimsical phantasmagorias men and women move and speak as at the bidding of destinies drunk with laughing-gas.

    Views and Reviews

    William Ernest Henley

  • In medicine the anesthetic of choice is chloroform or ether; in dentistry it is laughing-gas, or nitrous oxide.

    Why We Punctuate

    William Livingston Klein

British Dictionary definitions for laughing gas

laughing gas

  1. another name for nitrous oxide
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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

laughing gas in Medicine

laughing gas

  1. Nitrous oxide, especially as used as an anesthetic.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

laughing gas in Science

laughing gas

  1. Nitrous oxide used as a mild anesthetic.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.