Imperforata
Im`per´fo`ra´ta
| n. pl. | 1. | (Zool.) A division of Foraminifera, including those in which the shell is not porous. |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
| n. pl. | 1. | (Zool.) A division of Foraminifera, including those in which the shell is not porous. |