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[puh-ral-duh-hahyd] /pəˈræl dəˌhaɪd/
noun, Chemistry, Pharmacology
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 of paraldehyde
1855-60; par- + aldehyde Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for paraldehyde


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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paraldehyde in Medicine

paraldehyde par·al·de·hyde (pə-rāl'də-hīd')
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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