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Definition of Aschelminthes
1. Noun. Unsegmented worms: roundworms; threadworms; eelworms.
Exact synonyms: Nematoda, Phylum Aschelminthes, Phylum Nematoda
Group relationships: Animal Kingdom, Animalia, Kingdom Animalia
Member holonyms: Helminth, Parasitic Worm, Aphasmidia, Class Aphasmidia, Class Phasmidia, Phasmidia, Nematode, Nematode Worm, Roundworm, Ascaridae, Family Ascaridae, Family Oxyuridae, Oxyuridae, Cephalobidae, Family Cephalobidae, Family Tylenchidae, Tylenchidae, Ancylostomatidae, Family Ancylostomatidae, Family Filariidae, Filariidae, Dracunculidae, Family Dracunculidae
Generic synonyms: Phylum
Group relationships: Animal Kingdom, Animalia, Kingdom Animalia
Member holonyms: Helminth, Parasitic Worm, Aphasmidia, Class Aphasmidia, Class Phasmidia, Phasmidia, Nematode, Nematode Worm, Roundworm, Ascaridae, Family Ascaridae, Family Oxyuridae, Oxyuridae, Cephalobidae, Family Cephalobidae, Family Tylenchidae, Tylenchidae, Ancylostomatidae, Family Ancylostomatidae, Family Filariidae, Filariidae, Dracunculidae, Family Dracunculidae
Generic synonyms: Phylum
Medical Definition of Aschelminthes
1. A former phylum of the Metazoa which included the class Nematoda and a disparate assortment of other pseudocelomates, each now accorded separate phylum status; they are nonsegmented, bilaterally symmetric, and cylindric or filiform, with a pseudocele body cavity and rounded or pointed ends; they vary considerably in size, and the male is usually smaller than the female. (05 Mar 2000)