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arcella

 - 2 dictionary results

Ar⋅cel⋅la

[ahr-sel-uh]
–noun
a genus of freshwater, ameboid protozoa that secrete a hard, umbrellalike shell having a single opening through which the pseudopodia extend.

Origin:
1838; < NL, equiv. to L arc(a) a chest, box + -ella dim. suffix
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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arcella

noun
an amoeba-like protozoan with a chitinous shell resembling an umbrella 
WordNet® 3.0, © 2006 by Princeton University.
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