We found 15 dictionaries that define the word teratogens:

General (8 matching dictionaries)

1. teratogens: Merriam-Webster
2. teratogens: Collins English Dictionary
3. teratogens: Vocabulary.com
4. teratogens: Wordnik
5. teratogens: Wiktionary
6. teratogens: Dictionary.com
7. Teratogens: Wikipedia, the Free Encyclopedia
8. Teratogens: TheFreeDictionary.com

Computing (1 matching dictionary)

9. Teratogens: Encyclopedia

Medicine (6 matching dictionaries)

10. teratogens: Merriam-Webster Medical Dictionary
11. Medical Dictionary (No longer online)
12. Teratogens: Merck Manuals
13. online medical dictionary (No longer online)
14. teratogens: Medical dictionary
15. Hyperdictionary (No longer online)

(Note: See teratogen as well.)

Definitions from Wiktionary (teratogen) ▸ noun:  (teratology) Any agent or substance which can cause malformation of an embryo or birth defects. ▸ Also see teratogen Opposite: nurturing, beneficial, supportive ▸ Words similar to teratogens ▸ Usage examples for teratogens ▸ Idioms related to teratogens ▸ Wikipedia articles (New!) ▸ Popular adjectives describing teratogens ▸ Words that often appear near teratogens ▸ Rhymes of teratogens ▸ Invented words related to teratogens