teratogenesis

noun
ter·​a·​to·​gen·​e·​sis | \ˌter-ə-tə-ˈje-nə-səs \

Definition of teratogenesis 

: production of developmental malformations

First Known Use of teratogenesis

1901, in the meaning defined above

History and Etymology for teratogenesis

New Latin

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The first known use of teratogenesis was in 1901

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teratogenesis

noun
ter·​a·​to·​gen·​e·​sis | \ˌter-ə-tə-ˈjen-ə-səs \
plural teratogeneses\ -​ˌsēz \

Medical Definition of teratogenesis 

: production of developmental malformations

More from Merriam-Webster on teratogenesis

Britannica.com: Encyclopedia article about teratogenesis

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