Testicardines
Tes`ti`car´di`nes
n. pl. | 1. | (Zool.) A division of brachiopods including those which have a calcareous shell furnished with a hinge and hinge teeth. Terebratula and Spirifer are examples. |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.