/ Dictionary / Index D dibranchiate: Meaning and Definition of Find definitions for: di•bran•chi•ate Pronunciation: (dī-brang'kē-it, -kē-āt"), [key] — adj. belonging or pertaining to the Dibranchiata, a subclass or order of cephalopods with two gills, including the decapods and octopods. —n. a dibranchiate cephalopod. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dibranchiate (Thesaurus) dibrach Dibrom Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language