/ Dictionary / Index R reticulocyte: Meaning and Definition of Find definitions for: re•tic•u•lo•cyte Pronunciation: (ri-tik'yu-lu-sīt"), [key] — n. Anat. a very young red blood cell, sampled as a measure of red blood cell formation; reticulated erythrocyte. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: reticulocyte (Thesaurus) reticule reticuloendothelial Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language