/ Dictionary / Index L lemon-grass oil: Meaning and Definition of Find definitions for: lem'on-grass oil" Pronunciation: (lem'un-gras", -gräs"), [key] a yellowish to brownish oil distilled from the leaves of certain lemon grasses, esp. Cymbopogon citratus, used chiefly in perfumery. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lemon grass Lemon Grove Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language