COFFIN n.
The hollow crust or hoof of a horse's foot, below the coronet, in which is the coffin bone. Coffin bone, the foot bone of the horse and allied animals, inclosed within the hoof, and corresponding to the third phalanx of the middle finger, or toe, of most mammals. -- Coffin joint, the joint next above the coffin bone.…
COMMUTATION n.
of commutation (Astron.), the difference of the geocentric longitudes of the sun and a planet. -- Commutation of tithes, the substitution of a regular payment, chargeable to the land, for the annual tithes in kind. -- Commutation ticket, a ticket, as for transportation, which is the evidence of a contract for service…