ascarid
Concise Oxford English Dictionary © 2008 Oxford University Press:
ascarid /ˈaskərɪd/ (also ascaris /-rɪs/)
▶noun Zoology a member of a family of parasitic nematode worms (Ascaridae ) that live in the intestines of vertebrates.
– origin C17: from mod. L. Ascaridae, from Gk askarides, pl. of askaris ‘intestinal worm’.
'ascarid' also found in these Oxford entries:

