/ Dictionary / Index U universal joint: Meaning and Definition of Find definitions for: u'niver'sal joint' Pronunciation: [key] — Mach. Mach. a coupling between rotating shafts set at an angle to one another, allowing for rotation in three planes. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. universalize universal language Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language