'subclass Dibranchiata' definitions:
Definition of 'subclass Dibranchiata'
(from WordNet)
noun
Comprising all living cephalopods except the family Nautilidae: the orders Octopoda (octopuses) and Decapoda (squids and cuttlefish) [syn: Dibranchiata, subclass Dibranchiata, Dibranchia, subclass Dibranchia]