Filarioidea
noun pluralMedical Definition of Filarioidea
: a large superfamily of nematodes of the order Spirurida that comprises the medically important filarial worms and related forms having a slender thready body, a simple anterior end with the oral lips inconspicuous, a cylindrical esophagus lacking a bulbus, and often unequal and dissimilar copulatory spicules in the male