dibranchiate

[ dahy-brang-kee-it, -kee-eyt ]

adjective

1. belonging or pertaining to the Dibranchiata, a subclass or order of cephalopods with two gills, including the decapods and octopods.

noun

1. a dibranchiate cephalopod.

dibranchiate

/ -ˌeɪt; daɪˈbræŋkɪɪt /

adjective

1. of, relating to, or belonging to the Dibranchiata, a group or former order of cephalopod molluscs, including the octopuses, squids, and cuttlefish, having two gills

noun

1. any dibranchiate mollusc

Word History and Origins

Origin of dibranchiate¹

1825–35; < New Latin Dibranchiata; di- ¹, branchiate

Example Sentences

Argonaut—Female Ar�gonaut, a molluscous animal of the genus Argonauta, belonging to the dibranchiate or two-gilled cuttle-fishes, distinguished by the females possessing a single-chambered external shell, not organically connected with the body of the animal.

From Project Gutenberg

These lamellae appear to represent the four tentacles of the anti-spadix of the right internal lobe, and are generally regarded as corresponding to that modification of the sucker-bearing arms of male Dibranchiate Siphonopods to which the name “hectocotylus” is applied.

From Project Gutenberg

With this should be compared the similar view of the sub-pallial chamber of the Dibranchiate Sepia.

From Project Gutenberg

It has been maintained by some zoologists that the Ammonoidea were Dibranchiate, though it would not follow from this that the shell was, therefore, internal.

From Project Gutenberg

In any case, it seems to the writer impossible to doubt that each tentacle, and its sheath on a lobe of the circumoral disk of Nautilus, corresponds to a sucker on such a lobe of a Dibranchiate.

From Project Gutenberg