coronary thrombosis: obstruction of blood flow in a coronary artery by a blood clot (thrombus)
thrombosis: the formation or presence of a thrombus (a clot of coagulated blood attached at the site of its formation) in a blood vessel
trailing four o'clock: trailing plant having crowded clusters of 3 brilliant deep pink flowers resembling a single flower blooming near the ground; found in dry gravelly or sandy soil; southwestern United States and Mexico