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Definition of Cannon bone
1. Noun. Greatly developed metatarsal or metacarpal bone in the shank or cannon part of the leg in hoofed mammals.
Definition of Cannon bone
1. Noun. A bone resulting from the fusion of metacarpals or metatarsals in some artiodactyls. ¹
2. Noun. The metacarpal of a horse. ¹
3. Noun. The metatarsal of a horse. ¹
¹ Source: wiktionary.com
Medical Definition of Cannon bone
1. The middle metacarpal (or metatarsal bone) in the horse. Synonym: shank bone. (05 Mar 2000)