bloodletting
['blʌd`lɛtɪŋ]
n. 血

[医] 血

1. U. S. commanders have conceded that renewed attempts to quell sectarian bloodletting in Baghdad are proving unsuccessful.
   美司令已,美巴镇压种族流血件败告终.
2. U. S commanders have[ conceded that renewed attempts to quell sectarian bloodletting in Baghdad] are proving unsuccessful.
   美指挥伊镇压宗教留动。
3. Before this century, medicine consisted mainly of amputation saws, morphine and crude remedies that were about as effective as bloodletting.
   ，医疗技截肢锯、啡似血效始疗组。

bloodletting
[ noun ]

1. formerly used as a treatment to reduce excess blood (one of the four humors of medieval medicine)

<noun.act>

2. indiscriminate slaughter

<noun.act>
a bloodbath took place when the leaders of the plot surrendered
ten days after the bloodletting Hitler gave the action its name
the valley is no stranger to bloodshed and murder
a huge prison battue was ordered

Bloodletting \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.