noun a small bone in the foot of a horse.
2. coronary ·adj of or pertaining to a crown; forming, or adapted to form, a crown or garland.
3. coronary ·noun informal shortening of coronary thrombosis, also used generally to mean heart attack.
4. coronary ·adj resembling, or situated like, a crown or circlet; as, the coronary arteries and veins of the heart.