/ Dictionary / Index B barbican: Meaning and Definition of Find definitions for: bar•bi•can Pronunciation: (bär'bi-kun), [key] — n. an outwork of a fortified place, as a castle. a defensive outpost of any sort. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: barbican (Thesaurus) barbette barbicel Related Content Daily Word Quiz: draconian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language