order Testacea
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| Noun | 1. |  order Testacea - testacean rhizopods animal order - the order of animals Rhizopoda, subclass Rhizopoda - creeping protozoans: amoebas and foraminifers testacean - any of various rhizopods of the order Testacea characterized by having a shell Arcellidae, family Arcellidae - soil and freshwater protozoa; cosmopolitan in distribution genus Difflugia - genus of protozoans related to ameba |