- an excessive and abnormal discharge from the sebaceous glands.
n.also seborrhoea, “discharge of sebaceous matter, especially as a scalp condition,” 1849, coined in Modern Latin as a hybrid, from sebo-, used as comb. form of Latin sebum “tallow, suet, grease” (see sebum) + Greek hroia “flow, flux,” from rhein “to flow” (see rheum) adj.
- Of, relating to, or affected by seborrhea.
- Overactivity 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.