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cyclopropane

[sahy-kluh-proh-peyn, sik-luh-] /ˌsaɪ kləˈproʊ peɪn, ˌsɪk lə-/
noun, Chemistry, Pharmacology
1.
a colorless, flammable gas, C 3 H 6 , used in organic synthesis and in medicine as an anesthetic.
Also called trimethylene.
Origin
1890-1895
1890-95; cyclo- + propane
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for cyclopropane
  • About cyclopropane as an anesthetic: it use to be used, but it has now been replaced by others.
British Dictionary definitions for cyclopropane

cyclopropane

/ˌsaɪkləʊˈprəʊpeɪn; ˌsɪk-/
noun
1.
a colourless flammable gaseous hydrocarbon, used in medicine as an anaesthetic; trimethylene. It is a cycloalkane with molecules containing rings of three carbon atoms. Formula: C3H6; boiling pt: –34°C
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
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cyclopropane in Science
cyclopropane
  (sī'klə-prō'pān', sĭk'lə-)   
A highly flammable, explosive, colorless gas that was once in wide use as an anesthetic but has been mostly replaced by less flammable gases. The three carbon atoms of cyclopropane form a triangular ring. Chemical formula: C3H6.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for cyclopropane

explosive, colourless gas used in medicine since 1934 as a general anesthetic. Cyclopropane is nonirritating to mucous membranes and does not depress respiration. Induction of and emergence from cyclopropane anesthesia are usually rapid and smooth. A mixture of about 5 to 20 percent cyclopropane in oxygen is administered by inhalation. Because of the flammability and expense of cyclopropane, it is usually used in a closed (rebreathing) system, in which an absorbent chemical, such as soda lime, removes exhaled carbon dioxide, and the anesthetic is recirculated. The chemical formula is C3H6.

Learn more about cyclopropane with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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