Definitions of flatworm
  1. noun
    parasitic or free-living worms having a flattened body
    synonyms: platyhelminth
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    planaria, planarian
    free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts
    fluke, trematode, trematode worm
    parasitic flatworms having external suckers for attaching to a host
    cestode, tapeworm
    ribbonlike flatworms that are parasitic in the intestines of humans and other vertebrates
    Fasciola hepatica, liver fluke
    flatworm parasitic in liver and bile ducts of domestic animals and humans
    Fasciolopsis buski
    fluke that is parasitic on humans and swine; common in eastern Asia
    blood fluke, schistosome
    flatworms parasitic in the blood vessels of mammals
    tapeworms whose larvae are parasitic in humans and domestic animals
    tapeworms parasitic in humans which uses the pig as its intermediate host
    type of:
    any of numerous relatively small elongated soft-bodied animals especially of the phyla Annelida and Chaetognatha and Nematoda and Nemertea and Platyhelminthes; also many insect larvae
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