Endometrium

//ˌɛndəˈmiːtɹi.əm// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The mucous membrane that lines the uterus in mammals and in which fertilized eggs are implanted.
  2. 2
    (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 wordnet

Example

More examples

"There was also a more than two and a half times increased risk of cancer of the endometrium and a 1.7 times higher risk of breast cancer among diabetic Asians compared to those who were not diabetic."

Etymology

From endo- (“inner”) + Late Latin metrium (“womb”), from Ancient Greek μήτριον (mḗtrion, “of a mother”). Compare μήτρᾱ (mḗtrā, “womb”).

Related phrases

mucous membrane

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.