/ Dictionary / Index L lithium stearate: Meaning and Definition of Find definitions for: lith'ium ste'arate Pronunciation: [key] — Chem. Chem. a white, crystalline, slightly water-soluble powder, LiCHO, used chiefly in cosmetics, in plastics, and as a lubricant in powder metallurgy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lithium oxide litho Related Content Daily Word Quiz: pudgy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language