Entry 1 sense Webster, 1913 Cryptobranchiata /(kr?p`t?*bra?`k?*?"t?)/ · Cryp·to·bran·chi·a·ta · IPA 01 n. pl. A division of the Amphibia; the Derotremata. 1. A division of the Amphibia; the Derotremata.(Zool.)