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amniochorion

noun
am·​ni·​o·​cho·​ri·​on
plural -s

Definition of amniochorion

: the amnion and chorion acting as a functional unit

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First Known Use of amniochorion

1889, in the meaning defined above

History and Etymology for amniochorion

New Latin, from amnio- + chorion

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The first known use of amniochorion was in 1889

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