from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The glandular mucous membrane that lines the uterus.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. the mucous membrane that lines the uterus in mammals and in which fertilized eggs are implanted

from the GNU version of the Collaborative International Dictionary of English

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

from The Century Dictionary and Cyclopedia

  • n. The lining membrane of the uterus.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. (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


New Latin endomētrium : endo- + Greek mētra, uterus; see metro-.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From endo- (“inner”) +‎ Late Latin metrium ("womb"), from Ancient Greek μήτριον ("of a mother"). (Wiktionary)


  • Ninety-four percent of uterine cancers begin in the lining of the uterus, also called the endometrium.

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  • In a natural anticipation of fertilization, these rising estrogen levels stimulate the tissue that lines the inside of your uterus called the endometrium to begin growing thicker.

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  • The entire cavity of the uterus is lined by a mucous membrane; [1] this mucous membrane is called the endometrium (endo -- within; metra -- uterus).

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  • The uterus, which is called the endometrium, and usually it is diagnosed following patient reports of abnormal bleeding.


  • The endometrium is a layer of mucous tissue, which lines the uterus cavity and undergoes hormone-dependent changes during the menstrual cycle.

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  • Cancer of the endometrium is the most common gynaecologic malignancy and accounts for 6% of all cancers in women.

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  • When a fertilized ovum reaches the uterus, it becomes implanted in the lining of the uterus, known as endometrium and a pregnancy begins.

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  • Oh, right, as for the polyp, it wasn't really a polyp after all, but they did a biopsy of my endometrium which itself might have taken out the sort of bump that had looked like a polyp on ultrasound.

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  • Development of specific cancers, most commonly cancers of the breast, thyroid and endometrium (lining of the uterus) and less frequently, brain tumors and a type of kidney cancer known as renal cell carcinoma

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  • Individuals with CS also have a high riskof developing benign and malignant tumors of the thyroid, breast and endometrium.

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