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Arbutus unedoArc
arc lamp
Arc light
Arc of vision
arc-boutant
Arca
Arcade
Arcaded
Arcadia
Arcadian
Arcadic
Arcane
Arcanum
arcdegree
arced
-- arcella --
Arcellidae
Arceuthobium
Arceuthobium pusillum
Arch
Arch brick
arch over
Arch rim
Arch stone
arch support
Arch-
Archaean
archaebacteria
archaebacterium
archaeobacteria
Archaeography
Archaeolithic
arcella
| n. | 1. | An amoebalike protozoan with a chitinous shell resembling an umbrella. |
| Noun | 1. |  arcella - an amoeba-like protozoan with a chitinous shell resembling an umbrella |