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unsaturated

[uhn-sach-uh-rey-tid] /ʌnˈsætʃ əˌreɪ tɪd/
adjective
1.
not saturated; having the power to dissolve still more of a substance.
2.
Chemistry. (of an organic compound) having a double or triple bond and capable of taking on elements or groups by direct chemical combination without the liberation of other elements or compounds, as ethylene, CH 2 =CH 2 ; undersaturated.
Origin
1750-1760
1750-60; un-1 + saturated
Related forms
unsaturate
[uhn-sach-er-it, -uh-reyt] /ʌnˈsætʃ ər ɪt, -əˌreɪt/ (Show IPA),
noun
unsaturation, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for un saturation

unsaturated

/ʌnˈsætʃəˌreɪtɪd/
adjective
1.
not saturated
2.
(of a chemical compound, esp an organic compound) containing one or more double or triple bonds and thus capable of undergoing addition reactions
3.
(of a fat, esp a vegetable fat) containing a high proportion of fatty acids having double bonds
4.
(of a solution) containing less solute than a saturated solution
Derived Forms
unsaturation, noun
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
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Word Origin and History for un saturation

unsaturated

adj.

1756, from un- (1) "not" + past participle of saturate (v.).

Online Etymology Dictionary, © 2010 Douglas Harper
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un saturation in Medicine

unsaturated un·sat·u·rat·ed (ŭn-sāch'ə-rā'tĭd)
adj.

  1. Of or relating to a solution in which the solvent is capable of dissolving still more of the solute; not saturated.

  2. Of or relating to a chemical compound in which all the affinities are not satisfied, so that still other atoms or radicals may be added to it.

  3. Of or relating to chemical compounds containing double and triple bonds.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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un saturation in Science
unsaturated
  (ŭn-sāch'ə-rā'tĭd)   

  1. Relating to an organic compound in which two or more of the carbon atoms are joined by a double or triple bond and therefore can be combined with additional atoms or radicals. Benzene and acetylene are examples of unsaturated compounds. Compare saturated.See also monounsaturated, polyunsaturated.

  2. Relating to a solution that is capable of dissolving more solute than it already contains.


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