Arcella

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  arcella \arcella\ n.
     An amoebalike protozoan with a chitinous shell resembling an
     umbrella.
     [WordNet 1.5]

From WordNet (r) 2.0 [wn]:



  arcella
       n : an amoeba-like protozoan with a chitinous shell resembling
           an umbrella