/ Dictionary / Index D dichasium: Meaning and Definition of Find definitions for: di•cha•sium Pronunciation: (dī-kā'zhum, -zhē-um, -zē-um), [key] — pl. -si•a a form of cymose inflorescence in which each axis produces a pair of lateral axes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dicey dichlamydeous Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language