/ Dictionary / Index D deoxyribonucleic acid: Meaning and Definition of Find definitions for: de•ox'y•ri'bo•nu•cle'ic ac'id Pronunciation: (dē-ok'si-rī'bō-n-klē'ik, -ny-, -ok"si-rī"-), [key] — Genetics. Genetics. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. deoxyribonuclease deoxyribonucleoprotein Related Content Daily Word Quiz: confectionery Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language