seborrhea (n.) Look up seborrhea at Dictionary.com
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 rhoia "flow, flux," from rhein "to flow" (from PIE root *sreu- "to flow").