(1)(medicine) puncture of a vein through the skin in order to withdraw blood for analysis or to start an intravenous drip or to inject medication or a radiopaque dye
(2)分析のための採血、点滴を始める、薬物療法を注入する、あるいは放射線不透過性色素のための、皮膚を通じた静脈穿刺