/ Dictionary / Index L litmus paper: Meaning and Definition of Find definitions for: lit'mus pa"per Pronunciation: [key] a strip of paper impregnated with litmus, used as a chemical indicator. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. litmus litmus test Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language