- the greatly developed middle metacarpal or metatarsal bone of hoofed quadruped mammals, extending from the hock to the fetlock.
Origin of cannon bone
1825–35; cannon in obsolete sense “tube”
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for cannon bone
The tendons that run down behind the cannon-bone should not adhere closely just below the knee.
This bone (cannon-bone) between the knee and the fetlock should be short, straight, and strong.
- a bone in the legs of horses and other hoofed animals consisting of greatly elongated fused metatarsals or metacarpals
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012