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terato-

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  1. a combining form meaning “monster,” used in the formation of compound words: teratology.
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Also especially before a vowel, terat-.

Origin of terato-

< Greek terat- (stem of téras) monster, marvel + -o-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

terato- in Medicine

terato-

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