Testacea

plural noun

Tes·​ta·​cea

teˈstāsh(ē)ə

: an order of Rhizopoda containing forms (as of the genera Arcella and Difflugia) with an external test

testacean

(ˈ)⸗¦⸗shən

adjective or noun

Word History

Etymology

New Latin, from Latin, neuter plural of testaceus covered with a shell

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