/ Dictionary / Index M miticide: Meaning and Definition of Find definitions for: mit•i•cide Pronunciation: (mīt'u-sīd"), [key] — n. Chem. a substance or preparation for killing mites. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mithridatize mitigate Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language