terato-

Also especially before a vowel, terat-.

Origin of terato-

< Greek terat- (stem of téras) monster, marvel + -o-
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terato- in Medicine

terato-

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