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stearo-

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  1. a combining form borrowed from Greek, where it meant “fat”, used with this meaning, and with reference to stearic acid and its related compounds, in the formation of compound words: stearoptene; stearoyl.
Also especially before a vowel, stear-.

Origin of stearo-

combining form representing Greek stéar fat, grease; cf. steato-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
stearo- in Medicine

stearo-

pref.
  1. Fat:stearate.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.