a small worm that usually lives in water and that attaches itself to other creatures and drinks their blood. Leeches were used in the past by doctors to remove blood from sick people. 水蛭；蚂蟥 - (disapproving)
a person who depends on somebody else for money, or takes the profit from somebody else’s work 依赖他人钱财者；攫取他人收益者；寄生虫
Word OriginOld English lǣce, lȳce; related to Middle Dutch lake, lieke.