male pattern baldness
noun
a pattern of hair loss in males, dependent on the presence of the androgenic hormone testoterone, in which the scalp hair eventually covers only the back of the head and temples.
Also called an·dro·ge·net·ic alope·cia [an-druh-juh-net-ik] /ˌæn drə dʒəˈnɛt ɪk/.
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019