River limpet Meaning, Definition & Usage

  1. noun minute conical gastropod superficially resembling a limpet but living and feeding on freshwater plants
    Ancylus fluviatilis; freshwater limpet.

WordNet

Definitions
  1. (Zoöl.), a fresh-water, air-breathing mollusk of the genus Ancylus, having a limpet-shaped shell.

Webster 1913