/ Dictionary / Index L lanolin: Meaning and Definition of Find definitions for: lan•o•lin Pronunciation: (lan'l-in), [key] — n. a fatty substance, extracted from wool, used in ointments, cosmetics, waterproof coatings, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lanolin (Thesaurus) Lanny lanose Related Content Daily Word Quiz: menagerie Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language