/ Dictionary / Index H hema-: Meaning and Definition of Find definitions for: hema- Pronunciation: [key] var. ofhemacytometer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hem hemacytometer Related Content Daily Word Quiz: ablution Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language