Any of very many parasitic or free-living worms, of the phylum Platyhelminthes, having a flattened body with no skeleton or body cavity.

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  • Flatworm — Flat worm , n. (Zo[ o]l.) Any worm belonging to the Platyhelminthes; also, sometimes applied to the planarians. [1913 Webster] …   The Collaborative International Dictionary of English

  • flatworm — ► NOUN ▪ a worm of a large group (the phylum Platyhelminthes) which includes the parasitic flukes and tapeworms, distinguished by a simple flattened body lacking blood vessels …   English terms dictionary

  • flatworm — [flat′wʉrm΄] n. PLATYHELMINTH …   English World dictionary

  • Flatworm — Taxobox name = Platyhelminthes image width = 240px image caption = Bedford s flatworm, Pseudobiceros bedfordi regnum = Animalia subregnum = Eumetazoa Body Plan = Bilateria superphylum = Platyzoa phylum = Platyhelminthes phylum authority =… …   Wikipedia

  • flatworm — /flat werrm /, n. any worm of the phylum Platyhelminthes, having bilateral symmetry and a soft, solid, usually flattened body, including the planarians, tapeworms, and trematodes; platyhelminth. [1895 1900; FLAT1 + WORM] * * * or platyhelminth… …   Universalium

  • flatworm — noun Date: 1874 any of a phylum (Platyhelmainthes) of soft bodied usually much flattened acoelomate worms (as the planarians, flukes, and tapeworms) called also platyhelminth …   New Collegiate Dictionary

  • flatworm — A member of the phylum Platyhelminthes, including the parasitic tapeworms and flukes. * * * flat·worm flat .wərm n any worm of the phylum Platyhelminthes: PLATYHELMINTH esp TURBELLARIAN …   Medical dictionary

  • flatworm — n. tapeworm, worm with a flat soft body …   English contemporary dictionary

  • flatworm — noun a worm of a phylum which includes the planarians, parasitic flukes, and tapeworms, distinguished by a simple flattened body lacking blood vessels. [Phylum Platyhelminthes.] …   English new terms dictionary

  • flatworm — platyhelminth; n. any of the flat bodied worms, including the flukes and tapeworms. Both these groups contain many parasites of medical importance …   The new mediacal dictionary

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