bleeder

n. 易出血的人, 血友病患者
【化】 泄放器
【医】 易出血者, 放血者

bleed.er

n.（名词）
A person, such as a hemophiliac, who bleeds freely or is subject to frequent hemorrhages.
易出血者：如血友病患者等易出血或经常出血的人


Slang A blood vessel from which there is uncontrolled bleeding.
【俚语】 出血不受控制的血管
A blood vessel severed by trauma or surgery that requires cautery or ligature to arrest the flow of blood.
放血：由于外伤或外科手术而切断的血管，需要灼烧或绑扎以止血
A person who draws blood from another; a phlebotomist.
从他人身上抽血者；静脉切开放血医师