/ Dictionary / Index D diiodomethane: Meaning and Definition of Find definitions for: di•i•o•do•meth•ane Pronunciation: (dī-ī"u-dō-meth'ān), [key] — n. Chem. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dihydroxyphenylalanine diisobutyl phthalate Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language