(L. sebum suet + Gr. rhoia flow) 1. excessive secretion of sebum; called also hypersteatosis 2. seborrhoeic dermatitis.
1. Excessive secretion of sebum, also called hypersteatosis ... 2. <dermatology> Seborrhoeic dermatitis. ... Origin: L. Sebum = suet, Gr. Rhoia = flow ... (18 Nov 1997) ... 
Increased discharge of the oily secretion sebum from the sebaceous glands of the skin.
Skin condition where there is excessive production of sebum
Seborrhoea is a condition of the skin in which there is excessive secretion by the sebaceous glands, forming crusts with scales from the skin and dirt.
seborrhea, seborrhoea 1. A disease of the sebaceous glands characterized by excessive secretion of sebum or an alteration in its quality, resulting in an oily coating, crusts, or scales on the skin.2. A functional disease of the sebaceous glands marked by an increase in the amount, and often an alteration of the quality, of the sebaceous secretion...seborrhoea A British spelling for seborrhea.
excessive oiliness of the face and scalp