Excessive development of the male breasts. Temporary enlargement of the breasts is not unusual or abnormal in boys during adolescence or during recovery from malnutrition. Gynecomastia may be abnormal as, for example, in Klinefelter’s syndrome.

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gy·ne·co·mas·tia or chiefly Brit gy·nae·co·mas·tia 'gī-nə-kō-'mas-tē-ə, 'jin-ə- n excessive development of the breast in the male

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gy·ne·co·mas·tia (gi″nə-) (jin″ə-ko-masґte-ə) [gyneco- + mast- + -ia] excessive growth of the male mammary glands, in some cases including development to the stage at which milk is produced, usually associated with metabolic derangements that lead to estrogen accumulation, testosterone deficiency, and hyperprolactinemia. A mild form may develop transiently during normal puberty. Cf. pseudogynecomastia.

Medical dictionary. 2011.

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  • gynecomastia — /jin i koh mas tee euh, guy ni , juy ni /, n. abnormal enlargement of the breast in a male. Also, gynecomasty /jin i keuh mas tee, guy ni , juy ni /. [1880 85; < NL; see GYNECO , MAST , IA] * * * Breast enlargement in a male. It usually involves… …   Universalium

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  • gynecomastia — noun Etymology: New Latin, from gynec + Greek mastos breast + New Latin ia Date: 1881 excessive development of the breast in the male …   New Collegiate Dictionary

  • gynecomastia — noun Excessive development of breasts in males, resembling the breast development in women …   Wiktionary

  • gynecomastia — n. abnormal enlargement of the breast (in a male) …   English contemporary dictionary

  • gynecomastia — gyne·co·mas·tia …   English syllables

  • gynecomastia — gy•ne•co•mas•ti•a [[t]ˌgaɪ nɪ kəˈmæs ti ə, ˌdʒɪn ɪ [/t]] also gy′ne•co•mas ty n. pat abnormal enlargement of the breast in a male • Etymology: 1880–85; gyneco + Gkmast(ós)breast + ia …   From formal English to slang

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