Any of the coronary vessels; a coronary artery or coronary vein.
A small bone in the foot of a horse.
Encircling something (like a crown), especially with regard to the arteries or veins of the heart.
An acute myocardial infarction, sometimes fatal, caused by the sudden occurrence of coronary thrombosis, which obstructs the blood supply to the heart and leads to necrosis of heart muscle tissue.
Death or failure.