1) Agent 
The ability to produce birth defects (teratogenic effects do not pass on to future generations)
producing monsters or abnormal growth
tending to produce anomalies of formation, or teratism (= anomaly of formation or development : condition of a monster).
<pharmacology, obstetrics> Tending to produce anomalies of formation or teratism (= anomaly of formation or development: condition of a monster). ... See: teratogenicity ... Origin: Gr. Gennan = to produce ... (18 Nov 1997) ... 
Substances such as chemicals or radiation that cause abnormal development of a embryo.
Anything which produces nonheritable birth defects is said to be teratogenic.
Substances or agents that can interfere with normal embryonic development, causing birth defects and abnormalities in puppies.
Type: Term Pronunciation: ter′ă-tō-jen′ik, -jĕ-net′ik Definitions: 1. Relating to teratogenesis. 2. Causing congenital anomalies or birth defects.
Teratogenic: Able to disturb the growth and development of an embryo or fetus. See also: Teratogen and Teratogenic drugs.
Capable of causing abnormal development of the embryo and congenital malformations (From terato = monster (Greek))
Describes any substance that can cause birth deformities.
[adj] - of or relating to substances or agents that can interfere with normal embryonic development
teratogenesis, teratogenetic, teratogenic, teratogeny The production of monsters or misshapen organisms.
able to disrupt the normal development of a fetus in utero
Of, relating to, or causing developmental malformations.
adjective of or relating to substances or agents that can interfere with normal embryonic development