cystoid adjective & noun.
['sɪstɔɪd] L19.[from Greek kustis bladder + -OID.]1. Medicine. (Of the nature of) a cyst.
rare.
L19.2. Palaeontology. A member of, of or pertaining to, the order Cystoidea of fossil echinoderms.
L19. [TahlilGaran] English Dictionary ▲