a benign tumor originating in a secretory gland.
a benign tumor of glandlike structure.
Historical Examples

Certain growths, such as adenomata, are liable to cystic degeneration, and cysts are also found in malignant disease.
Encyclopaedia Britannica, 11th Edition, Volume 15, Slice 7 Various

In the case of simple cysts, adenomata, and dermoids, the results are encouraging.
A System of Operative Surgery, Volume IV (of 4) Various

Parovarian and Grtnerian cysts are found, and adenomata form 20% of all ovarian cysts.
Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 Various

noun (pl) -mas, -mata (-mətə)
a tumour, usually benign, occurring in glandular tissue
a tumour having a glandlike structure

adenoma ad·e·no·ma (ād’n-ō’mə)
n. pl. ad·e·no·mas or ad·e·no·ma·ta (-mə-tə)
A benign epithelial tumor having a glandular origin and structure.


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  • Adenomatoid tumor

    adenomatoid tumor adenomatoid tumor n. A small benign tumor of the male epididymis or the female genital tract, consisting of fibrous tissue or smooth muscle enclosing spaces lined by flattened cells. Also called adenofibromyoma, Recklinghausen’s tumor.

  • Adenomatoid

    adenomatoid adenomatoid ad·e·no·ma·toid (ād’n-ō’mə-toid’) adj. Resembling an adenoma.

  • Adenomatosis

    adenomatosis adenomatosis ad·e·no·ma·to·sis (ād’n-ō’mə-tō’sĭs) n. Development of multiple glandular overgrowths.

  • Adenomatous goiter

    adenomatous goiter adenomatous goiter n. Goiter due to the growth of multiple encapsulated adenomas or multiple nonencapsulated colloid nodules within its substance.

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