Nem·a·toi·dea /ˌnɛməˈtɔɪdɪə/ 名詞 複數
  Nem·a·toi·de·a prop. n. pl.  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.
  Note: ☞ The trichina, stomach worm, and pinworm of man belong to this group.  See also Vinegar eel, under Vinegar, and Gapeworm.
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