[stee-uh-rin, steer-in]
Chemistry. any of the three glyceryl esters of stearic acid, especially C 3 H 5 (C 1 8 H 3 5 O 2 ) 3 , a soft, white, odorless solid found in many natural fats.
the crude commercial form of stearic acid, used chiefly in the manufacture of candles.
Also, stearine [stee-er-in, -uh-reen, steer-in] .

1810–20; < French stéarine < Greek stéar fat, grease + French -ine -ine2; see -in2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
stearin or stearine (ˈstɪərɪn)
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
[C19: from French stéarine, from Greek stear fat, tallow + -in]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

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.

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