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laughing gas - 6 dictionary results
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laughing gas

 
Use laughing gas in a Sentence
–noun
nitrous oxide.
Origin:
1835–45
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nitrous oxide

 
–noun Chemistry, Pharmacology.
a colorless, sweet-smelling, sweet-tasting, nonflammable, slightly water-soluble gas, N2O, that sometimes produces a feeling of exhilaration when inhaled: used chiefly as an anesthetic in dentistry and surgery, in the manufacture of chemicals, and as an aerosol.
Also called laughing gas.

Origin:
1790–1800
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To laughing gas
laugh·ing gas   (lāf'ĭng, lä'fĭng)
n.  Nitrous oxide, especially as used as an anesthetic.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Main Entry: laughing gas
Function: noun
: NITROUS OXIDE
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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laughing gas laugh·ing gas (lāf'ĭng)
n.
Nitrous oxide, especially as used as an anesthetic.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
laughing gas   (lāf'ĭng)  Pronunciation Key 
Nitrous oxide used as a mild anesthetic.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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