肺蛭 fèizhì lung fluke Definitions Defs Origin Strokes Stroke Words Sentences Sents 肺 fèi noun lung lung; the breathing organ in the chest of humans and many animals, also called 肺脏 fèizàng蛭 zhì leech (bound form) leech; fluke; any of various parasitic segmented worms of the class Hirudinea, such as the 水蛭 shuǐzhì