Definition of "teratogen" []

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

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Firstly, the definition of the word, 'teratogen' is thus:"
• "“Potassium iodide is a possible teratogen (causing fetal goiter).”"
• "Regulatory agencies around the world have concluded that glyphosate is not a reproductive toxin or teratogen cause of birth defects based on in-depth review of the comprehensive data sets available."