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Overactivity of the sebaceous glands, resulting in an excessive amount of sebum. [sebo- + G. rhoia, a flow]
- s. capitis s. of the scalp.
- eczematoid s. seborrheic eczema in which lesions have lost definition and have become confluent, usually as a result of trauma and overzealous use of soap and medication.
- s. furfuracea SYN: s. sicca (1).
- s. sicca 1. an accumulation on the skin, especially the scalp, of dry scales; SYN: s. furfuracea. 2. SYN: dandruff.
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seb·or·rhea or Brit seb·or·rhoea .seb-ə-'rē-ə n abnormally increased secretion and discharge of sebum producing an oily appearance of the skin and the formation of greasy scales
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seb·or·rhea (seb″o-reґə) [sebum + -rrhea] 1. excessive secretion of sebum; called also hypersteatosis. 2. seborrheic dermatitis.Medical dictionary. 2011.