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Webster 1913 Edition
Planaria
‖
Pla-na′ri-a
,Noun.
pl. L.
Planariæ
(#)
, E. -rias
(#)
. [NL. See
Planary
.] (Zool.)
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.