/ Dictionary / Index E erythrocytometer: Meaning and Definition of Find definitions for: e•ryth•ro•cy•tom•e•ter Pronunciation: (i-rith"rō-sī-tom'i-tur), [key] — n. an apparatus used for counting red blood cells. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. erythrocyte erythromycin Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language