noun
lung fluke; Paragonimus westermani
A parasitic flatworm that infects the lungs of mammals, including humans, often acquired through eating undercooked freshwater crustaceans.
肺吸虫は淡水のカニやザリガニを生で食べることで感染する。
Lung flukes are transmitted by eating raw freshwater crabs or crayfish.
Compound of 肺 (hai, 'lung') + 吸虫 (kyūchū, 'fluke, trematode'), literally 'lung fluke'.