Definition of Planaria in English:

Planaria

noun

Zoology
  • A genus of planarians found in freshwater and moist terrestrial habitats.

Origin

Early 19th century; earliest use found in John Mason Good (1764–1827), physician and surgeon. From scientific Latin Planaria, genus name, use as noun of feminine of post-classical Latin planarius (adjective), properly ‘on level ground’, but taken to mean ‘flat’.

Pronunciation

Planaria

/pləˈnɛːrɪə/