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Peroxides

 [puh-rok-sahyd]   Origin

per·ox·ide

   [puh-rok-sahyd] noun, verb, -id·ed, -id·ing.
noun
1.
Chemistry.
a.
hydrogen peroxide, H2O2 or H–O–O–H.
b.
a compound containing the bivalent group –O2–, derived from hydrogen peroxide, as sodium peroxide, Na2O2, or dimethyl peroxide, C3H6O2.
c.
the oxide of an element that contains an unusually large amount of oxygen.
verb (used with object)
2.
to use peroxide as a bleaching agent on (especially the hair).

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Peroxides is always a great word to know.
So is gobo. Does it mean:
a scrap or morsel of food left at a meal.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
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Origin:
1795–1805; per- + oxide

Related forms
per·ox·id·ic  [pur-ok-sid-ik] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Etymonline
Word Origin & History

peroxide
1804, formed in Eng. from per- "large amount" + oxide (q.v.). Peroxide blonde is attested from 1918.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

peroxide per·ox·ide (pə-rŏk'sīd')
n.

  1. A compound, such as sodium peroxide, that contains a peroxy group and yields hydrogen peroxide when treated with an acid.

  2. Hydrogen peroxide.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
peroxide   (pə-rŏk'sīd')  Pronunciation Key 

  1. A compound containing the group O2. Peroxides are strong oxidizers and are used as industrial bleaches. When any peroxide is combined with an acid, one of the products is hydrogen peroxide.

  2. Hydrogen peroxide.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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