endometrium

Definitions of endometrium
  1. noun
    (pregnancy) the mucous membrane that lines the uterus; thickens under hormonal control and (if pregnancy does not occur) is shed in menstruation; if pregnancy occurs it is shed along with the placenta at parturition
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    type of:
    mucosa, mucous membrane
    mucus-secreting membrane lining all body cavities or passages that communicate with the exterior
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