Main Entry: lung·worm

Pronunciation: \-ˌwərm\

Function: noun

: any of various nematodes especially of the family Metastrongylidae that infest the lungs and air passages of mammals: as a : a nematode of the genus Dictyocaulus b : a lungworm of the genus Metastrongylus (M. apri synonym M. elongatus) that infests swine and causes bronchitis