Nematoda

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Nematoda \Nem`a*to"da\, prop. n. pl. (Zool.)
     A phylum of worms, having a long, round, and generally smooth
     body; the roundworms. They are mostly parasites, in plants
     and animals, but some are free-living in soil or water. Also
     called {Nematoidea}.
     [1913 Webster +PJC]



From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Nematoidea \Nem`a*toi"de*a\, prop. n. pl. [NL., fr. Gr. nh^ma,
     nh`matos, thread + -oid.] (Zool.)
     A phylum of worms, having a long, round, and generally smooth
     body; the roundworms. Called also {Nematodea}, and more
     commonly {Nematoda}. Formerly, it was classed as a taxonomic
     order.
     [1913 Webster +PJC]
  
     Note: The trichina, stomach worm, and pinworm of man belong
           to this group. See also {Vinegar eel}, under {Vinegar},
           and {Gapeworm}.
           [1913 Webster]

From WordNet (r) 2.0 [wn]:

  Nematoda
       n : unsegmented worms: roundworms; threadworms; eelworms [syn: {phylum
           Nematoda}, {Aschelminthes}, {phylum Aschelminthes}]