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[per-as-id] /pərˈæs ɪd/
noun, Chemistry.
an oxyacid, the primary element of which is in its highest possible oxidation state, as perchloric acid, HClO 4 , and permanganic acid, HMnO 4 .
Origin of peracid
First recorded in 1895-1900; per- + acid Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for peracid


an acid, such as perchloric acid, in which the element forming the acid radical exhibits its highest valency
(not in technical usage) an acid, such as persulphuric acid, that contains the -OOH group Recommended names peroxo acid, peroxy acid
Derived Forms
peracidity (ˌpɛrəˈsɪdɪtɪ) noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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peracid in Medicine

peracid per·ac·id (pûr'ās'ĭd)

  1. Any of various acids containing the peroxy group.

  2. An inorganic acid, such as perchloric acid, containing the largest proportion of oxygen in a series of related acids.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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