(coronaries)
1.
Coronary means belonging or relating to the heart. (MEDICAL)
If all the ~ arteries are free of significant obstructions, all parts of the heart will receive equal amounts of oxygen.
ADJ: ADJ n
2.
If someone has a ~, they collapse because the flow of blood to their heart is blocked by a large lump of blood called a clot.
= heart attack
N-COUNT