Planarian

[plә'nєәriәn]

Definition

(noun.) free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts.

Typed by Elbert--From WordNet

Definition

(n.) One of the Planarida, or Dendrocoela; any turbellarian worm.

Typed by Gordon

Definition

adj. and n. a term practically coextensive with Turbellarian applicable to the members of the lowest class of worm-like animals living in fresh and salt water and sometimes in damp earth.—adjs. Planar′iform Planā′rioid.

Editor: Rosalie