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| Matching Terms: | planarian, planarida, planarioid | ||
 WordNet Dictionary | |||
| Definition: | [n] free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts | ||
| Synonyms: | planarian | ||
| See Also: | class Turbellaria, flatworm, platyhelminth, Turbellaria | ||
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| Webster's 1913 Dictionary | |||
| Definition: | \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.
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