Definitions
1.verbTo bleed; let blood; phlebotomise.
2.nounThe archaic practice of treating illness by removing some blood, believed to be tainted, from the stricken person.
3.noun(by extension) The diminishment of any resource with the hope that this will lead to a positive effect."Yet another round of corporate bloodletting."
4.nounA circumstance, such as a battle, where a large amount of blood is likely to be spilled through violence.