/ Dictionary / Index F FitzGerald contraction: Meaning and Definition of Find definitions for: FitzGer'ald contrac"tion Pronunciation: (fits-jer'uld lôr'ents, -lōr'-), [key] — Physics. Physics. the hypothesis that a moving body exhibits a contraction in the direction of motion when its velocity is close to the speed of light. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Fitzgerald Fitzhugh 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