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superoxide

[ soo-per-ok-sahyd, -sid ]
/ ˌsu pərˈɒk saɪd, -sɪd /
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noun Chemistry.

a compound containing the univalent ion O2.

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Also called hyperoxide.

Origin of superoxide

First recorded in 1840–50; super- + oxide
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use superoxide in a sentence

  • Finely ground platinum brought in contact with hydrogen-superoxide divides it into hydrogen and oxygen.

    The Wonders of Life|Ernst Haeckel

British Dictionary definitions for superoxide

superoxide
/ (ˌsuːpərˈɒksaɪd) /

noun

any of certain metal oxides that contain the O 2 ionpotassium superoxide, KO 2
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

Medical definitions for superoxide

superoxide
[ sōō′pər-ŏksīd′ ]

n.

A compound containing a univalent anionic oxygen molecule or the univalent anion itself.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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