Arcella arcature • Arceuthobium · · · Info · Definitions · Characters · · Arcella · · Text Latin · · Script 7 · · Length Definitions · · · (noun) an amoeba-like protozoan with a chitinous shell resembling an umbrella. Synonyms: arcella. · · Noun Definition 1 Characters · · A latin capital letter a U+0041 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C r latin small letter r U+0072