Definition of flatworm in English:

flatworm

Syllabification: flat·worm
Pronunciation: /ˈflatˌwərm
 
/

noun

A worm of a phylum that includes the planarians together with the parasitic flukes and tapeworms. They are distinguished by having a simple flattened body that lacks blood vessels, and a digestive tract that, if present, has a single opening.
  • Phylum Platyhelminthes: several classes
More example sentences
  • Planarians are free-living flatworms, and have a much simpler life history.
  • Among the earliest hunters, flatworms were simple but effective killing machines.
  • All the ponds hosted parasitic flatworms called trematodes.

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