bloodletting

nouns

formerly used as a treatment to reduce excess blood (one of the four humors of medieval medicine)
domain category
the branches of medical science that deal with nonsurgical techniques
domain category
the period of history between classical antiquity and the Italian Renaissance
is a type of (narrower)
professional treatment for illness or injury
indiscriminate slaughter
"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"