flatworm

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noun flat·worm \-ˌwərm\

Definition of FLATWORM

:  any of a phylum (Platyhelminthes) of soft-bodied usually much flattened acoelomate worms (as the planarians, flukes, and tapeworms) —called also platyhelminth

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First Known Use of FLATWORM

1874

Rhymes with FLATWORM

affirm, bagworm, bloodworm, bookworm, budworm, confirm, cutworm, deworm, dew worm, earthworm, eelworm, glowworm, heartworm, hookworm, hornworm, inchworm, infirm, long-term, lugworm, lungworm, midterm, pinworm, ringworm, roundworm, sandworm, screwworm, short-term, silkworm, tapeworm, webworm, woodworm

flatworm

noun flat·worm \ˈflat-ˌwərm\   (Medical Dictionary)

Medical Definition of FLATWORM

:  any worm of the phylum Platyhelminthes :  platyhelminth; especially :  turbellarian