- A division of Foraminifera, including those in that your shell just isn't porous.
- A division of the Foraminifera, including these types of families as Gromiidæ, Lituodlidæ, and Miliolidæ, by which pseudopodia protrude from only one end of this human anatomy, the rest of which is incased in an imperforate membranous or hardened exo-skeleton: against Perforata.
Sentence for "imperforata"
- P. testa ovata, imperforata, solidiuscula, cornea;…
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