from the GNU version of the Collaborative International Dictionary of English
- n. An amoebalike protozoan with a chitinous shell resembling an umbrella.
from The Century Dictionary and Cyclopedia
- n. A genus of amœboid protozoan organisms having a kind of carapace or shell, the type of a family Arcellidæ.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an amoeba-like protozoan with a chitinous shell resembling an umbrella
Sorry, no etymologies found.