endometrium: the lining of the uterus or womb. Structurally, it is a mucous membrane.

Dictionary of Sexology Project: Main Index

En`do*me"tri*um (?), n. [NL., fr. Gr. within + the womb.] Anat.

The membrane lining the inner surface of the uterus, or womb.

 

© Webster 1913.

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