Medical Dictionary

proamnion

play
noun pro·am·ni·on \-ˈam-nē-ˌän, -ən\

Medical Definition of proamnion

plural

proamnions

or

proamnia

\-nē-ə\play
  1. :  an area in the anterior part of the blastoderm of an early amniote embryo that is free of mesoderm

proamniotic

\-ˌam-nē-ˈät-ik\play adjective

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