un pigmented

pigment

[pig-muhnt]
noun
1.
a dry insoluble substance, usually pulverized, which when suspended in a liquid vehicle becomes a paint, ink, etc.
2.
a coloring matter or substance.
3.
Biology. any substance whose presence in the tissues or cells of animals or plants colors them.
verb (used with object)
4.
to color; add pigment to.
verb (used without object)
5.
to become pigmented; acquire color; develop pigmentation: a poor quality of paper that doesn't pigment well.

Origin:
1350–1400; Middle English < Latin pigmentum paint, equivalent to pig- (stem of pingere to paint) + -mentum -ment

hyperpigmented, adjective
nonpigmented, adjective
unpigmented, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
pigment (ˈpɪɡmənt)
 
n
1.  a substance occurring in plant or animal tissue and producing a characteristic colour, such as chlorophyll in green plants and haemoglobin in red blood
2.  any substance used to impart colour
3.  a powder that is mixed with a liquid to give a paint, ink, etc
 
[C14: from Latin pigmentum, from pingere to paint]
 
'pigmentary
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

pigment
late 14c., from L. pigmentum "coloring matter, pigment, paint," from root of pingere "to color, paint" (see paint). Variants of this word may have been known in O.E. (e.g. 12c. pyhmentum).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

pigment pig·ment (pĭg'mənt)
n.

  1. A substance used as coloring.

  2. Dry coloring matter, usually an insoluble powder to be mixed with water, oil, or another base to produce paint and similar products.

  3. A substance that produces a characteristic color in tissue.

  4. A medicinal preparation applied to the skin like paint.

v. pig·ment·ed, pig·ment·ing, pig·ments
To color with pigment.
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
pigment   (pĭg'mənt)  Pronunciation Key 
  1. An organic compound that gives a characteristic color to plant or animal tissues and is involved in vital processes. Chlorophyll, which gives a green color to plants, and hemoglobin, which gives blood its red color, are examples of pigments.

  2. A substance or material used as coloring.


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