- : A accumulation of scales of greasy skin, often on the scalp. Seborrhea is commonly known as dandruff. Treatment is with gentle washing, avoiding the use of harsh or perfumed soaps that can further irritate the oil glands. Coal-tar soap and similar preparations may also be
* * *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.
* * *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
* * *seb·or·rhea (seb″o-reґə) [sebum + -rrhea] 1. excessive secretion of sebum; called also hypersteatosis. 2. seborrheic dermatitis.
Medical dictionary. 2011.