zhèn
legendary bird whose feathers can be used as poison
poisonous; to poison sb
饮鸩止渴
yǐn zhèn zhǐ kě
lit. drinking poison in the hope of quenching one's thirst (idiom)
鸩羽
zhèn yǔ
the poisonous feathers of the legendary bird Zhen 鴆|鸩