[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. 2018
- 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
Word Origin and History for teratogen
1959, from comb. form of Greek teras (genitive teratos) "marvel, monster" + -gen.
Online Etymology Dictionary, © 2010 Douglas Harper
- An agent, such as a virus, a drug, or radiation, that can cause malformations or functional damage to an embryo or a fetus.
- 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.