adjective Chemistry.

containing the peroxy group.

Origin of peroxy

First recorded in 1955–60; per- + oxy-2


a combining form used in the names of chemical compounds in which the peroxy group is present: peroxyborate. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for peroxy


esp for inorganic compounds peroxo-

combining form

indicating the presence of the peroxide group, -O–O-peroxysulphuric acid Also (not in technical usage): per-
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

Medicine definitions for peroxy




Containing the bivalent group O2.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.