( NAmE seb·or·rhea ) / ˌsebəˈrɪə; NAmE -ˈriːə/ noun
[ U ] a medical condition of the skin in which an unusually large amount of sebum is produced by the sebaceous glands
► seb·or·rhoe·ic ( NAmE seb·or·rhe·ic ) / ˌsebəˈriːɪk; NAmE / adjective
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WORD ORIGIN
late 19th cent.: from sebum + -rrhoea .