turbellarian

Any of various free-living chiefly aquatic ciliate flatworms, including the planarians.

Causing little currents or vortexes of water by ciliary action, as the more minute members of the class Turbellaria; belonging to this class, as a worm.

A member of the class Turbellaria.

One of the Turbellaria. Also used adjectively.

Any flatworm of the class Turbellaria.