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paraldehyde

[puh-ral-duh-hahyd] /pəˈræl dəˌhaɪd/
noun, Chemistry, Pharmacology
1.
a colorless, liquid, cyclic compound, C 6 H 1 2 O 3 , having a disagreeable taste but an agreeable odor, produced by the polymerization of acetaldehyde with sulfuric acid: used chiefly in the manufacture of organic chemicals and in medicine as a sedative and hypnotic.
Also called paracetaldehyde.
Origin
1855-1860
1855-60; par- + aldehyde
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for par-aldehyde

paraldehyde

/pəˈrældɪˌhaɪd/
noun
1.
a colourless liquid substance that is a cyclic trimer of acetaldehyde: used in making dyestuffs and as a hypnotic and anticonvulsant drug. Formula: (C2H4O)3
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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par-aldehyde in Medicine

paraldehyde par·al·de·hyde (pə-rāl'də-hīd')
n.
A potent hypnotic and sedative suitable for oral, rectal, intravenous, and intramuscular administration. Also called paracetaldehyde.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for par-aldehyde

paraldehyde

colourless liquid of disagreeable taste and pungent odour used in medicine as a sedative-hypnotic drug and in chemistry in the manufacture of organic chemicals. When administered as a medicine, it is largely excreted by the lungs and gives an unpleasant odour to the breath. It is most useful for recalcitrant cases and is an older drug for treatment of acute alcoholic dementia.

Learn more about paraldehyde with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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5
6
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