/ Dictionary / Index B branchia: Meaning and Definition of Find definitions for: bran•chi•a Pronunciation: (brang'kē-u), [key] — pl. -chi•ae a gill. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: branchia (Thesaurus) branchi- branchial Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language