hēˈmäŋkəs noun
Usage: capitalized
Etymology: New Latin, from hem- + -onchus (irregular from Greek onkos barb of an arrow)
: a widely distributed genus of nematode worms (family Trichostrongylidae) comprising chiefly a parasite ( H. contortus ) of the abomasum of sheep and other ruminants and rarely in man — see haemonchosis