/ Dictionary / Index L lunatic fringe: Meaning and Definition of Find definitions for: lu'natic fringe' Pronunciation: [key] members on the periphery of any group, esp. political, social, or religious, who hold extreme or fanatical views. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lunatic lunation Related Content Daily Word Quiz: drowsy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language