Search Result for "planarian": 
Wordnet 3.0

NOUN (1)

1. free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts;
[syn: planarian, planaria]



The Collaborative International Dictionary of English v.0.48:

Planarian \Pla*na"ri*an\, n. (Zool.)
   One of the Planarida, or Dendroc[oe]la; any turbellarian
   worm. -- Pla*na"ri*an, a.
   [1913 Webster]


WordNet (r) 3.0 (2006):

planarian
    n 1: free-swimming mostly freshwater flatworms; popular in
         laboratory studies for the ability to regenerate lost parts
         [syn: planarian, planaria]