the terminal phalangeal bone inside the hoof of the horse and similar animals
coffin bone in American English
the foot bone inside the hoof of a horse
coffin bone in American English
noun
the terminal phalanx in the foot of the horse and allied animals, enclosed in the hoof
Word origin
[1710–20]This word is first recorded in the period 1710–20. Other words that entered Englishat around the same time include: bother, bureau, hunker, o'clock, offshore