noun
coronary vein
Anatomical term for the veins that drain blood from the heart muscle.
冠状静脈は心臓の筋肉から血液を集める。
The coronary veins collect blood from the heart muscle.
冠状動脈 (coronary artery) carries blood to the heart muscle, while 冠状静脈 carries blood away from it.
Compound of 冠状 (coronary, crown-shaped) and 静脈 (vein). The term is a direct translation of the English 'coronary vein'.