- not saturated; having the power to dissolve still more of a substance.
- 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, CH2=CH2; undersaturated.
Origin of unsaturated
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Examples from the Web for unsaturation
It is, therefore, a hydrocarbon of a very high degree of unsaturation.The Chemistry of Plant Life
Roscoe Wilfred Thatcher
- not saturated
- (of a chemical compound, esp an organic compound) containing one or more double or triple bonds and thus capable of undergoing addition reactions
- (of a fat, esp a vegetable fat) containing a high proportion of fatty acids having double bonds
- (of a solution) containing less solute than a saturated solution
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
Word Origin and History for unsaturation
Online Etymology Dictionary, © 2010 Douglas Harper
- Of or relating to a solution in which the solvent is capable of dissolving still more of the solute; not saturated.
- 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.
- 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.
- 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.
- Relating to a solution that is capable of dissolving more solute than it already contains.
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