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Medical Definition of Hyostrongylus rubidus
1. The red stomach worm of swine; a small reddish trichostrongyle nematode that burrows into the mucosa of the fundus of the pig stomach and sucks blood; moderate numbers appear to cause little damage unless the animal's resistance is lowered by other factors. Origin: G. Hys, gen. Hyos, a hog, + strongylos, round (05 Mar 2000)