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cannon bone

American  

noun

Zoology.
  1. the greatly developed middle metacarpal or metatarsal bone of hoofed quadruped mammals, extending from the hock to the fetlock.


cannon bone British  

noun

  1. 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

Etymology

Origin of cannon bone

1825–35; cannon in obsolete sense “tube”

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

O’Brien said the initial diagnosis was a non-displaced condylar fracture and described it as a small crack in the cannon bone.

From Los Angeles Times

It’s a repetitive strain injury that results in a fracture to the cannon bone above the fetlock due to large loads transmitted during high-speed workouts.

From Washington Times

The race lost luster Thursday when Omaha Beach pulled out with a problem in the right rear ankle that could have foreshadowed a cannon bone fracture.

From Los Angeles Times

“Many important lesions such as those in Mongolian Groom’s hind cannon bones are not easy to find,” according to the report.

From Los Angeles Times

He said the defect in Mongolian Groom’s left hind cannon bone was roughly one-quarter inch in size and not easily spotted on X-rays.

From Washington Times