terat-


Also found in: Medical.

terato-

or terat-
pref.
1. Congenital malformation: teratogenic.
2. Malignancy: teratoma.

[Greek, from teras, terat-, portent, monster; see kwer- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

terat-

or

terato-

combining form
(Medicine) indicating a monster or something abnormal: teratism; teratoid.
[from Greek terat-, teras monster, prodigy]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014