See Also: flatworm(medicine)
flatworm(dictionary)
flatworm(encyclopedia)

flatworm (iou)



flatworm noun. M18.
[from FLAT adjective + WORM noun.]
Any worm of the phylum Platyhelminthes, characterized by a flattened body with three cell layers, a blind gut, and no other body cavity, and including trematodes (flukes), cestodes (tapeworms), and turbellarians.