endometriosis

American  

[en-doh-mee-tree-oh-sis] / ˌɛn doʊˌmi triˈoʊ sɪs /

noun

Pathology.

1. the presence of tissue similar to the uterine lining outside of the uterus, especially in other pelvic organs such as the ovaries: characterized by cyst formation, adhesions, and pain.

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endometriosis British  

/ ˌɛndəʊˌmiːtrɪˈəʊsɪs /

noun

1. pathol the presence of endometrium in areas other than the lining of the uterus, as on the ovaries, resulting in premenstrual pain

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endometriosis Scientific  

/ ĕn′dō-mē′trē-ō′sĭs /

1. A gynecologic disorder characterized by the abnormal presence of functional endometrial tissue outside the uterus, often resulting in pelvic pain and dysmenorrhea.

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Etymology

Origin of endometriosis

First recorded in 1920–25; from New Latin; endometri(um) ( def. ) + -osis ( def. )

Example Sentences

See Examples For:

endometriosis

But a flare up of her endometriosis, a condition which sees tissue similar to the lining of the womb grow outside of it, meant she was competing in difficult conditions:

From BBC ● Sep. 7, 2026

Weston now uses social media to speak openly about having endometriosis and being a young woman in the sport of powerlifting, in the hope of empowering others.

From BBC ● Sep. 7, 2026

There is a history of endometriosis in Grace's family, but her mum Samantha says that did not make it any easier to get a diagnosis.

From BBC ● Aug. 23, 2026

Grace has recently had a laparoscopy - keyhole surgery - to remove her endometriosis.

From BBC ● Aug. 23, 2026

He’d pioneered the use of estrogen for treating symptoms of menopause and made important early discoveries about endometriosis.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot