/ Dictionary / Index L Lissajous figure: Meaning and Definition of Find definitions for: Lis'sa•jous fig"ure Pronunciation: (lē'su-zh", lē"su-zh'), [key] — Physics. Physics. the series of plane curves traced by an object executing two mutually perpendicular harmonic motions. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lis pendens lisse Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language