| Cystid | n. (Zool.) One of the Cystidea. [ 1913 Webster ] |
| Cystidea | ‖n. pl. [ NL., fr. Gr. &unr_;&unr_;&unr_;&unr_; a bladder, pouch. ] (Zool.) An order of Crinoidea, mostly fossils of the Paleozoic rocks. They were usually roundish or egg-shaped, and often unsymmetrical; some were sessile, others had short stems. [ 1913 Webster ] |
| Cystidean | n. (Zool.) One of the Cystidea. [ 1913 Webster ] |