/ Dictionary / Index D dinucleotide: Meaning and Definition of Find definitions for: di•nu•cle•o•tide Pronunciation: (dī-n'klē-u-tīd", -ny'-), [key] — n. Biochem. a molecule composed of two nucleotide subunits. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dint Dinwiddie Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language