phylum nematoda
English Thesaurus
1. unsegmented worms: roundworms; threadworms; eelworms (noun.animal)
| hypernym | : | phylum, |
| definition | : | (biology) the major taxonomic group of animals and plants; contains classes (noun.group) |
| member holonym | : | helminth, parasitic worm, |
| definition | : | worm that is parasitic on the intestines of vertebrates especially roundworms and tapeworms and flukes (noun.animal) |
| member holonym | : | aphasmidia, class aphasmidia, |
| definition | : | one of two subgroups of Nematoda used in some classification systems (noun.animal) |
| member holonym | : | class phasmidia, phasmidia, |
| definition | : | one of two subgroups of Nematoda used in some classification systems (noun.animal) |
| member holonym | : | nematode, nematode worm, roundworm, |
| definition | : | unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic (noun.animal) |
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