bleach

[bleech]
verb (used with object)
1.
to make whiter or lighter in color, as by exposure to sunlight or a chemical agent; remove the color from.
2.
Photography. to convert (the silver image of a negative or print) to a silver halide, either to remove the image or to change its tone.
verb (used without object)
3.
to become whiter or lighter in color.
noun
4.
a bleaching agent.
5.
degree of paleness achieved in bleaching.
6.
an act of bleaching.

Origin:
before 1050; Middle English blechen, Old English blǣcean, derivative of blāc pale; cognate with Old Norse bleikja, Old High German bleichēn

bleach·a·ble, adjective
bleach·a·bil·i·ty, noun
half-bleached, adjective
non·bleach, noun
o·ver·bleach, verb
re·bleach, verb
sem·i·bleached, adjective
un·bleached, adjective
un·bleach·ing, adjective


1. See whiten.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To Bleach
00:10
Bleach is always a great word to know.
So is rear projection. Does it mean:
a short film, as a documentary or travelogue, shown as part of a program with a feature-length film
a translucent screen in front of which actors are lit and filmed used to simulate an outdoor or location background in the studio
Collins
World English Dictionary
bleach (bliːtʃ) [Click for IPA pronunciation guide]
 
vb
1.  to make or become white or colourless, as by exposure to sunlight, by the action of chemical agents, etc
 
n
2.  a bleaching agent
3.  the degree of whiteness resulting from bleaching
4.  the act of bleaching
 
[Old English blǣcan; related to Old Norse bleikja, Old High German bleih pale]
 
'bleachable
 
adj
 
'bleacher
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

bleach
O.E. blæcan "bleach, whiten," from P.Gmc. *blaikjan "to make white" (cf. O.S. blek, O.N. bleikr, Du. bleek, O.H.G. bleih, Ger. bleich "pale;" O.N. bleikja, Du. bleken, Ger. bleichen "to bleach"), from PIE base *bhel- (1) "to shine, flash, burn" (cf. Skt. bhrajate "shines;" Gk. phlegein "to burn;"
L. flamma "flame," fulmen "lightning," fulgere "to shine, flash," flagrare "to burn;" O.C.S. belu "white;" Lith. balnas "pale"). The same root probably produced black; perhaps because both black and white are colorless, or because both are associated with burning. The noun meaning "a bleaching agent" is recorded from 1898.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
bleach   (blēch)  Pronunciation Key 
A chemical agent used to whiten or remove color from textiles, paper, food, and other substances and materials. Chlorine, sodium hypochlorite, and hydrogen peroxide are bleaches. Bleaches remove color by oxidation or reduction.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Plans are afoot to add a server farm and a bleach factory.
Then there was the car: a spray bottle of diluted bleach spritzed around in
  there.
Consumers can protect themselves by washing raw fruits and vegetables in soap
  and water or a dilute chlorine bleach solution.
The sink is full of bleach solution for scrubbing equipment and floors.
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