'Flatworm' definitions:
Definition of 'flatworm'
(from WordNet)
noun
Parasitic or free-living worms having a flattened body [syn: flatworm, platyhelminth]
Definition of 'Flatworm'
From: GCIDE
- Flatworm \Flat"worm`\, n. (Zool.) Any worm belonging to the Platyhelminthes; also, sometimes applied to the planarians. [1913 Webster]