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stearin

 [stee-uh-rin, steer-in]   Origin

ste·a·rin

   [stee-uh-rin, steer-in]
noun
1.
Chemistry. any of the three glyceryl esters of stearic acid, especially C3H5(C18H35O2)3, a soft, white, odorless solid found in many natural fats.
2.
the crude commercial form of stearic acid, used chiefly in the manufacture of candles.
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Also, ste·a·rine  [stee-er-in, -uh-reen, steer-in] .

Origin:
1810–20; < French stéarine < Greek stéar fat, grease + French -ine -ine2; see -in2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Stearin is always a great word to know.
So is anhydrous. Does it mean:
a double sulfate analogous to potassium alum, as aluminum ammonium sulfate, with the formula R2SO4?X2(SO4)3?24H2O, where R is alkali metal or ammonium
with all water removed, especially water of crystallization
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Collins
World English Dictionary
stearin or stearine (ˈstɪərɪn)
 
—n
1.  Also called: tristearin a colourless crystalline ester of glycerol and stearic acid, present in fats and used in soap and candles; glycerol tristearate; glycerol trioctadecanoate. Formula: (C17H35COO)3C3H5
2.  another name for stearic acid, esp a commercial grade containing other fatty acids
3.  fat in its solid form
 
[C19: from French stéarine, from Greek stear fat, tallow + -in]
 
stearine or stearine
 
—n
 
[C19: from French stéarine, from Greek stear fat, tallow + -in]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

stearin
white crystalline compound found in animal and vegetable fats, 1817, from Fr. stéarine, coined by Fr. chemist Marie-Eugène Chevreul (1786-1889) from Gk. stear (gen. steatos) "tallow, fat." Stearic acid (1831) is a partial translation of Fr. acide stéarique.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
stearin (stē'ər-ĭn, stîr'ĭn) also stearine   (stē'ər-ĭn, stîr'ĭn)  Pronunciation Key 

  1. A colorless, odorless, tasteless ester of glycerol and stearic acid found in most animal and vegetable fats and used in the manufacture of soaps, candles, metal polishes, and adhesives.Chemical formula: C57H110O6.

  2. The solid form of fat.


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