/ Dictionary / Index H hematocrit: Meaning and Definition of Find definitions for: he•mat•o•crit Pronunciation: (hi-mat'u-krit), [key] — n. a centrifuge for separating the cells of the blood from the plasma. Also calledthe ratio of the volume of red blood cells to a given volume of blood so centrifuged, expressed as a percentage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hematocrit (Thesaurus) hematochezia hematocryal Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language