- a fatty substance, extracted from wool, used in ointments, cosmetics, waterproof coatings, etc.
- a yellowish viscous substance extracted from wool, consisting of a mixture of esters of fatty acids: used in some ointmentsAlso called: wool fat
n.fatty matter extracted from sheep’s wool,” 1885, from German Lanolin, coined by German physician Mathias Eugenius Oscar Liebreich (1838-1908) from Latin lana “wool” (see wool) + oleum “oil, fat” (see oil (n.)) + chemical suffix -in (2). n.
- A fatty substance obtained from wool and used in soaps, cosmetics, and ointments.
- 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.