/ Dictionary / Index B bloodsucker: Meaning and Definition of Find definitions for: blood•suck•er Pronunciation: (blud'suk"ur), [key] — n. any animal that sucks blood, esp. a leech. an extortioner or usurer. sponger (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bloodsucker (Thesaurus) bloodstream blood sugar 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