Found 2 items, similar to planaria.
English → English (WordNet) Definition: planaria planaria n : free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts [syn: planarian]
English → English (gcide) Definition: Planaria Planaria \Pla*na"ri*a\, n.; pl. L. Planari[ae], E. -rias. [NL. See Planary.] (Zo["o]l.) 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. [1913 Webster]