stearic acid

stearic acid

noun Chemistry.
a colorless, waxlike, sparingly water-soluble, odorless solid, C 1 8 H 3 6 O 2 , the most common fatty acid, occurring as the glyceride in tallow and other animal fats and in some animal oils: used chiefly in the manufacture of soaps, stearates, candles, cosmetics, and in medicine in suppositories and pill coatings.
Also called octadecanoic acid.


Origin:
1825–35

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Collins
World English Dictionary
stearic acid
 
n
See also stearin a colourless odourless insoluble waxy carboxylic acid used for making candles and suppositories; octadecanoic acid. Formula: CH3(CH2)16COOH

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

stearic acid ste·ar·ic acid (stē-ār'ĭk, stēr'ĭk)
n.
A colorless, odorless, waxlike fatty acid occurring naturally in animal and vegetable fats and used in pharmaceutical preparations, ointments, soaps, and suppositories.

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
stearic acid   (stē-ār'ĭk, stîr'ĭk)  Pronunciation Key 
A colorless, odorless, waxlike fatty acid occurring in animal and vegetable fats and used in making soaps, candles, lubricants, and other products. Chemical formula: C18H36O2.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

stearic acid

one of the most common long-chain fatty acids, found in combined form in natural animal and vegetable fats. Commercial "stearic acid" is a mixture of approximately equal amounts of stearic and palmitic acids and small amounts of oleic acid. It is employed in the manufacture of candles, cosmetics, shaving soaps, lubricants, and pharmaceuticals.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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