/ Dictionary / Index B brilliantine: Meaning and Definition of Find definitions for: bril•lian•tine Pronunciation: (bril'yun-tēn"), [key] — n. an oily preparation used to make the hair lustrous. a dress fabric resembling alpaca. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: brilliantine (Thesaurus) brilliant cut Brillo Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language