seborrhoea (seb-ŏ-ree-ă) n. excessive secretion of sebum by the sebaceous glands. The glands are enlarged, especially on the nose and central face. The condition predisposes to acne and is common at puberty. Seborrhoea is sometimes associated with a kind of eczema (seborrhoeic eczema).
—seborrhoeic adj.

seborrhoea Disorder of the sebaceous glands characterized by over-production of sebum that results in red, scaly patches on the skin and dandruff.