/ Dictionary / Index B ball bearing: Meaning and Definition of Find definitions for: ball' bear'ing Pronunciation: [key] — Mach. Mach. a bearing consisting of a number of hard balls running in grooves in the surfaces of two concentric rings, one of which is mounted on a rotating or oscillating shaft or the like. any of the balls so used. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ballata ball boy Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language