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arcella
noun
ar·cel·la
\ärˈselə\
Definition of arcella
1 capitalized : the type genus of Arcellidae comprising protozoans resembling amoebas and provided with a chitinous shell suggesting an umbrella
2 plural -s : a protozoan of the genus Arcella
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Origin and Etymology of arcella
New Latin, from Latin arca box, chest + New Latin -ella
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