/ Dictionary / Index B bloodstream: Meaning and Definition of Find definitions for: blood•stream Pronunciation: (blud'strēm"), [key] — n. the blood flowing through a circulatory system. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bloodstream (Thesaurus) bloodstone bloodsucker 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