/ Dictionary / Index T thymocyte: Meaning and Definition of Find definitions for: thy•mo•cyte Pronunciation: (thī'mu-sīt"), [key] — n. Immunol. a cell that develops in the thymus and is the precursor of T cells. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thymine thymol Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language