PLANARIAS

PLANARIA

Pla*na"ri*a, n.; pl. L. Planariæ, E. -rias. Etym: [NL. See Planary.] (Zoöl.)

Definition: Any species of turbellarian worms belonging to Planaria, and many allied genera. The body is usually flat, thin, and smooth. Some species, in warm countries, are terrestrial.

Source: Webster’s Unabridged Dictionary 1913 Edition