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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 oxyacids.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Elements & Compounds) an acid, such as perchloric acid, in which the element forming the acid radical exhibits its highest valency
2. (Elements & Compounds) (not in technical usage) an acid, such as persulphuric acid, that contains the -OOH group. Recommended names: peroxo acid or peroxy acid
peracidity n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(pərˈæs ɪd)

an oxyacid, the primary element of which is in its highest possible oxidation state, as perchloric acid, HClO4, and permanganic acid, HMnO4.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
After removing the unbound conjugate by washing, a reagent containing luminogenic substrates (Luminol derivative and peracid salt) and an electron transfer agent is added to the wells.
Synthesis of the chemically modified Ekoprena involves the in-situ peracid forms from hydrogen peroxide and formic acid.
The first one included the "in situ" formed peracid generated from the endothermic reaction of hydrogen peroxide ([H.sub.2][O.sub.2]) and the acid, followed by the exothermic epoxidation reaction, leading to an increased polarity and a reduction in the C=C in the rubber chains [5, 8, 9,12-18].
Its powerful stain removal technology is due to NOBS, which works with peroxide to form peracid, a color-safe bleach that makes it ideal for clothing and fabrics.
According to P&G, Tide Oxi contains an ingredient called NOBS, which works with peroxide to form peracid, a stronger form of bleach than peroxide alone, resulting in stronger stain removal.
Evaluation of peracid activated organophosphates in studies of insecticide resistance conferred by insensitive acetylcholinesterases.
In contrast to the established, pure chemical variety, the enzyme lipase here catalyzes peracid, the epoxidation medium.