/ Dictionary / Index R radial tire: Meaning and Definition of Find definitions for: ra'dial tire' Pronunciation: [key] a motor-vehicle tire in which the plies or cords run from one bead to the other at right angles to both beads. See illustration under.Also called Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease. radial symmetry radial triangulation Related Content Daily Word Quiz: abscond Analogy of the Day: Today?s Analogy Spelling Bee: Today?s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language