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planarian

Noun

pla=nar=i=an

WORDNET DICTIONARY

planarian(n = noun.animal) planaria - free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts; Array

is a kind of flatworm, platyhelminth

is a member of class turbellaria, turbellaria

planarian, n.

One of the Planarida, or Dendrocœla; any turbellarian worm. [1913 Webster]

planarian, n. any flatworm of the class Turbellaria, usu. living in fresh water.

Etymology

mod.L Planaria the genus-name, fem. of L planarius lying flat

For further exploring for "planarian" in Webster Dictionary Online