blanch
1 Americanverb (used with object)
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to whiten by removing color; bleach.
Workers were blanching linen in the sun.
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Cooking.
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to scald briefly and then drain, as peaches or almonds to facilitate removal of skins, or as rice or macaroni to separate the grains or strands.
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to scald or parboil (meat or vegetables) so as to whiten, remove the odor, prepare for cooking by other means, etc.
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Horticulture. (of the stems or leaves of plants, as celery or leeks) to whiten or prevent from becoming green by excluding light.
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Metallurgy.
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to give a white luster to (metals), as by means of acids.
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to coat (sheet metal) with tin.
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to make pale, as with sickness or fear.
The long illness had blanched her cheeks of their natural color.
verb (used without object)
verb (used with object)
verb
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(also intr) to remove colour from, or (of colour) to be removed; whiten; fade
the sun blanched the carpet
over the years the painting blanched
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(usually intr) to become or cause to become pale, as with sickness or fear
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to plunge tomatoes, nuts, etc, into boiling water to loosen the skin
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to plunge (meat, green vegetables, etc) in boiling water or bring to the boil in water in order to whiten, preserve the natural colour, or reduce or remove a bitter or salty taste
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to cause (celery, chicory, etc) to grow free of chlorophyll by the exclusion of sunlight
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metallurgy to whiten (a metal), usually by treating it with an acid or by coating it with tin
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to attempt to conceal something
Related Words
See whiten.
Other Word Forms
- blancher noun
Etymology
Origin of blanch1
First recorded in 1300–50; Middle English bla(u)nchen, from Anglo-French, Middle French blanchir “to whiten,” derivative of blanc, blanche “white”; blank
Origin of blanch2
First recorded in 1565–75; variant of blench 1
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.
“Reporter-source relationships can be tricky, of course, and many journalists would blanch to see their correspondence with sources made public,” she added.
From The Wall Street Journal • Nov. 15, 2025
“We didn’t blanch at the cost to come to The Mather.”
From Barron's • Oct. 26, 2025
This was solidified for me after crossing a threshold that some West Coast purists would blanch at breaching — going to a Rick Bayless restaurant.
From Los Angeles Times • Sep. 16, 2025
Add the chiles and garlic to the boiling water and blanch for 1 minute.
From Seattle Times • Jul. 14, 2023
I fiddle with the color and blanch us out to black and white.
From "Merci Suárez Changes Gears" by Meg Medina
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.