/ Dictionary / Index B blue bull: Meaning and Definition of Find definitions for: blue' bull' Pronunciation: [key] nilgai. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. blue-breasted quail blue catfish Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language