blood·let·ting /-ˌlɛtɪŋ/ 名詞
Blood·let·ting, n. Med. The act or process of letting blood or bleeding, as by opening a vein or artery, or by cupping or leeches; -- esp. applied to venesection.
n 1: formerly used as a treatment to reduce excess blood (one of
the four humors of medieval medicine)
2: indiscriminate slaughter [syn: bloodbath, bloodshed, battue]