/ Dictionary / Index H hematin: Meaning and Definition of Find definitions for: he•ma•tin Pronunciation: (hē'mu-tin, hem'u-), [key] — n. heme. (loosely) hematein. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hematin (Thesaurus) hematic hematinic Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language