Filarioidea

noun plural
Fi·lar·i·oi·dea | \fə-ˌlar-ē-ˈȯid-ē-ə, -ˌler- \

Medical 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

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