[tuh-rat-uh-juh n, -jen, ter-uh-tuh-]
a drug or other substance capable of interfering with the development of a fetus, causing birth defects.
Origin of teratogen
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
any substance, organism, or process that causes malformations in a fetus. Teratogens include certain drugs (such as thalidomide), infections (such as German measles), and ionizing radiation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
"causing the formation of monsters," 1879, from teratogeny (1857), from comb. form of Greek teras (genitive teratos) "marvel, monster" + -genic.
1959, from comb. form of Greek teras (genitive teratos) "marvel, monster" + -gen.
Online Etymology Dictionary, © 2010 Douglas Harper
Of, relating to, or causing malformations of an embryo or a fetus.
An agent, such as a virus, a drug, or radiation, that can cause malformations or functional damage to an embryo or a fetus.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
An agent, such as a virus, a drug, or radiation, that can cause malformations in an embryo or fetus.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.