from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An agent, such as a virus, a drug, or radiation, that causes malformation of an embryo or fetus.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any agent or substance which can cause malformation of an embryo or birth defects.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. any agent that interferes with normal embryonic development: alcohol or thalidomide or X-rays or rubella are examples


From terato- + -gen (Wiktionary)



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