/ Dictionary / Index N nucleosome: Meaning and Definition of Find definitions for: nu•cle•o•some Pronunciation: (n'klē-u-sōm", ny'-), [key] — n. Cell Biol. any of the repeating subunits of chromatin occurring at intervals along a strand of DNA, consisting of DNA coiled around histone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nucleoside nucleosynthesis Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language