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amnion

noun am·ni·on \ ˈam-nē-ˌän , -ən \
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Definition of amnion

plural amnions or amnia play \-nē-ə\
1 : a thin membrane forming a closed sac about the embryos or fetuses of reptiles, birds, and mammals and containing the amniotic fluid
2 : a membrane analogous to the amnion and occurring in various invertebrates
—

amniotic

play \ˌam-nē-ˈä-tik\ adjective

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Recent Examples of amnion from the Web

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Origin and Etymology of amnion

New Latin, from Greek, caul, from amnos lamb — more at yean

Medical Dictionary

amnion

noun am·ni·on \ ˈam-nē-ˌän, -ən \

medical Definition of amnion

plural amnions or amnia play \-nē-ə\
: a thin membrane forming a closed sac about the embryos and fetuses of reptiles, birds, and mammals and containing the amniotic fluid — called also amniotic sac

Learn More about amnion

  1. See words that rhyme with amnion Britannica.com: Encyclopedia article about amnion

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amnion

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