testacean

testacean

[te-stey-shuhn]
adjective Zoology.
having a shell or test.

Origin:
1835–45; < Latin testāce(us) shell-covered, testaceous + -an

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American Heritage
Science Dictionary
testacean   (tě-stā'shən)  Pronunciation Key 
Any of various protozoans of the order Arcellinida (or Testacida) that are encased in a shell. Testaceans are rhizopods and are related to amoebas. Their shell usually has one chamber and may be secreted by the organism as a chitinous or siliceous covering, or may be glued together out of sand particles.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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