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Meaning of Arcella*

Ar•cel•la

Pronunciation: (är-sel'u), [key]
— n.
  1. a genus of freshwater, ameboid protozoa that secrete a hard, umbrellalike shell having a single opening through which the pseudopodia extend.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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