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Longman Dictionary of Contemporary English
lanolin
noun
EXAMPLES FROM CORPUS
▪ All lanolin and fragrance free and developed without testing on animals.
▪ I sniffed the lanolin of his rough wool sweater and the slaughtered smell of his jacket.
▪ It's unfortunate your big end's gone just as we've run out of lanolin, will axle grease do?
▪ It is also perfume and lanolin free.
▪ It was with a dab of lanolin.
▪ Nero says will you send some more lanolin.
▪ Sheep smell, too-of lanolin, the fatty exudate that waterproofs their wool.
▪ There must be some way of getting lanolin without killing whales, surely?
The Collaborative International Dictionary
Lanolin

Lanolin \Lan"o*lin\ (l[a^]n"[-o]*l[i^]n), n. [L. lana wool + oleum oil.] (Physiol. Chem.) A peculiar fatlike body, made up of cholesterin and certain fatty acids, found in feathers, hair, wool, and keratin tissues generally.

Note: Under the same name, it is prepared from wool for commercial purposes, and forms an admirable basis for ointments, being readily absorbed by the skin.

Douglas Harper's Etymology Dictionary
lanolin

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).

Wiktionary
lanolin

n. A greasy yellow substance chemically akin to wax that is secreted from wooly animals, with a variety of uses from rust prevention, lubrication and waterproofing to cosmetics and skin ointments.

WordNet
lanolin
  1. n. a yellow viscous animal oil extracted from wool; a mixture of fatty acids and esters; used in some ointments and cosmetics [syn: wool fat, wool grease]

  2. an emollient containing wool fat (a fatty substance obtained from the wool of sheep)

Wikipedia
Lanolin

Lanolin (from Latin lāna, ‘wool’, and oleum, ‘oil’), also called wool wax or wool grease, is a wax secreted by the sebaceous glands of wool-bearing animals. Lanolin used by humans comes from domestic sheep breeds that are raised specifically for their wool. Historically, many pharmacopoeias have referred to lanolin as wool fat ( adeps lanae); however, as lanolin lacks glycerides (glycerol esters), it is not a true fat. Lanolin primarily consists of sterol esters instead. Lanolin's waterproofing property aids sheep in shedding water from their coats. Certain breeds of sheep produce large amounts of lanolin. There is an inverse correlation between fiber diameter and wool wax content.

Lanolin’s role in nature is to protect wool and skin against the ravages of climate and the environment; it also seems to play a role in skin ( integumental) hygiene. Lanolin and its many derivatives are used extensively in products designed for the protection, treatment and beautification of human skin.

Usage examples of "lanolin".

Its bhederin-hide binding was stained and scarred, the lambskin pages within smelling of lanolin and bloodberry ink.

He counted a variety of scents, from tie smells men carried in and took away with them back to their own lives, the smells of their work-horse, clay, grain dust, the lanolin soldiers used in the care of leather uniforms, and the oil they used for sharpening their weapons, to a redolent wisp of almond oil, and the stale dirt and wet wood of the building.

Everything about the cavernous chamber was precisely as I remembered, only now the pleasantly musty air was spiced with the familiar aromas of cedarwood oil and lanolin, as well as a resinous tang of new wood, for a few of the shelves had been repaired and the railing in the gallery replaced.

The new packages should have the pin vises, some assorted sewing needles, lens paper, lanolin hand cleaner, and a couple of X-Acto knives and some blades.