/ Dictionary / Index B blue blood: Meaning and Definition of Find definitions for: blue blood Pronunciation: (bl' blud" for 1 bl' blud' for 2), [key] an aristocrat, noble, or member of a socially prominent family. aristocratic, noble, or socially prominent lineage or relatives: They boasted a lineage of pure blue blood. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. blue-black blueblossom Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language