noun \ˈla-nə-lən\

: an oily substance that comes from sheep's wool and that is used for making soaps and lotions

Full Definition of LANOLIN

:  wool grease especially when refined for use in ointments and cosmetics

Origin of LANOLIN

Latin lana wool + International Scientific Vocabulary 3-ol + 1-in
First Known Use: 1885


noun \ˈlan-əl-ən\   (Medical Dictionary)

Medical Definition of LANOLIN

: a yellowish sticky unctuous mass of refined wool grease that can be absorbed by the skin, contains from 25 to 30 percent incorporated water, and is used chiefly in ointments and cosmetics—called also adeps lanae, hydrous wool fat


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