/ Dictionary / Index D diadochokinesia: Meaning and Definition of Find definitions for: di•ad•o•cho•ki•ne•sia Pronunciation: (dī-ad"u-kō-ki-nē'zhu, -zhē-u, -zē-u, -kī-), [key] — n. Med. the normal ability to perform rapidly alternating muscular movements, as flexion and extension. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. diadic diadochy Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language