superoxide

American

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

noun

Chemistry.

a compound containing the univalent ion O 2 − .
peroxide.

superoxide British

/ ˌsuːpərˈɒksaɪd /

noun

any of certain metal oxides that contain the O 2 ^– ion

potassium superoxide, KO2

"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

Etymology

Origin of superoxide

First recorded in 1840–50; super- + oxide

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

superoxide

As a highly reactive compound, superoxide only lasts in the water for seconds.

From Science Daily ● Dec. 4, 2023

The water goes into the detection wand and mixes inside of a chamber, where a chemical reaction with superoxide produces light that can be measured in real time.

From Science Daily ● Dec. 4, 2023

In the study, authors took direct measurements of superoxide in water closely surrounding corals, by bringing a one-of-a-kind deep-sea chemiluminescent sensor called SOLARIS, into the ocean over 2,000 meters deep, on board the Alvin submersible.

From Science Daily ● Dec. 4, 2023

This helped eliminate the possibility that superoxide was being produced solely as a stress response.

From Science Daily ● Dec. 4, 2023

One molecule of permanganate equals one molecule of nitric oxide when manganous sulphate is used, since no part of the permanganate employed in this method is reduced below the superoxide condition.

From Scientific American Supplement, No. 561, October 2, 1886 by Various

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023