| 单词 | testacean |
| 释义 | testacean[ te-stey-shuhn ] / tɛˈsteɪ ʃən / adjective Zoology.having a shell or test. Origin of testacean1835–45; <Latin testāce(us) shell-covered, testaceous + -an Words nearby testaceanTessin, tessitura, Tess of the D'Urbervilles, test, testa, testacean, testaceous, test act, testacy, testalgia, testament Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Scientific definitions for testaceantestacean [ tĕ-stā′shən ] 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. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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