/ Dictionary / Index C cannon bone: Meaning and Definition of Find definitions for: can'non bone" Pronunciation: [key] — Zool. Zool. the greatly developed middle metacarpal or metatarsal bone of hoofed quadruped mammals, extending from the hock to the fetlock. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cannonball cannoneer Related Content Daily Word Quiz: lyre Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language