lanolin lan·o·lin (lān'ə-lĭn)
n.
A fatty substance obtained from wool and used in soaps, cosmetics, and ointments.
| lanolin (lān'ə-lĭn) Pronunciation Key
A yellowish-white wax secreted by the sebaceous glands of sheep to coat wool. Lanolin is composed of esters and polyesters of almost seventy alcohols and fatty acids. Since it is easily absorbed by the skin, it is used in soaps, cosmetics, and ointments. |