A superfamily of nematodes, including the
next roundworms that are
parasitic in man: Trichinella spiralis, the
trichina worm (family Trichinellidae); Trichuris trichiura, the
human whipworm; Capillaria hepatica, the
capillary liver worm; and C. Philippinensis (family Trichuridae).
Synonym: Trichinellicae.