noun, plural en·do·me·tri·a [en-doh-mee-tree-uh] /ˌɛn doʊˈmi tri ə/. Anatomy.

  1. the mucous membrane lining the uterus.

noun plural -tria (-trɪə)

  1. the mucous membrane that lines the uterus

1882, medical Latin, from endo- + Greek metra “uterus,” related to meter (see mother (n.1)).

n. pl. en•do•me•tri•a (-trē-ə)

  1. The glandular mucous membrane comprising the inner layer of the uterine wall.

Plural endometria

  1. The mucous membrane that lines the uterus. A fertilized egg must embed itself in the endometrium in order to develop into an embryo. See more at menstrual cycle.
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