platyelminthes Meaning, Definition & Usage

Plat`y*el*min"thes noun plural
Etymology
NL. See Platy-, and Helminthes.
Definitions
  1. (Zoöl.) A class of helminthes including the cestodes, or tapeworms, the trematodes, and the turbellarians. Called also flatworms. now = platyhelminthes

Webster 1913