Webster’s Revised Unabridged Dictionary · 1913
Decacerata
De·cac′e·ra′ta (dē·kăs′ē·rā′tȧ), n. pl. [NL., fr. Gr. δέκα ten + κέρας a horn.] (Zoöl.) The division of Cephalopoda which includes the squids, cuttlefishes, and others having ten arms or tentacles; — called also Decapoda. [Written also Decacera.] See Dibranchiata.