/ Dictionary / Index H hematopoiesis: Meaning and Definition of Find definitions for: he•mat•o•poi•e•sis Pronunciation: (hi-mat"ō-poi-ē'sis, hē'mu-tō-, hem"u-), [key] — n. the formation of blood. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hematopoiesis (Thesaurus) hematophyte hematoporphyria Related Content Daily Word Quiz: abyss Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language