Skip to Content


Pronunciation: mer'mis

Definition: Genus of long, opaque nematodes; larval stages passed in the hemocelic cavity of insects, particularly grasshoppers, whereas adults are free-living in the soil. Accidental ingestion by humans causes infection.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.