/ Dictionary / Index D dichlorophenoxyacetic acid: Meaning and Definition of Find definitions for: di•chlo'ro•phe•nox'y•a•ce'tic ac'id Pronunciation: (dī-klôr'ō-fi-nok'sē-u-sē'tik, -u-set'ik, dī-klōr'-, dī-klôr"ō-fi-nok"- dī-klōr"-), [key] — Chem. Chem. a white to yellow, crystalline powder, CHOCl, slightly soluble in water: used for killing weeds. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dichloromethane dicho- Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language