/ Dictionary / Index M methoxy: Meaning and Definition of Find definitions for: me•thox•y Pronunciation: (mu-thok'sē), [key] — adj. Chem. containing the methoxy group. methoxy- Pronunciation: [key] a combining form occurring in the names of chemical compounds in which the methoxy group is present: methoxychlor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. methoxsalen methoxybenzene Related Content Daily Word Quiz: dissonant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language