peroxy-(redirected from peroxo-)
Also found in: Medical.
Containing the bivalent group O2: peroxyacetyl nitrate.
peroxy-or esp for inorganic compounds
(Elements & Compounds) indicating the presence of the peroxide group, -O–O-: peroxysulphuric acid. Also (not in technical usage): per-
a combining form used in the names of chemical compounds in which the bivalent group –O2– is present.