/ Dictionary / Index M methohexital: Meaning and Definition of Find definitions for: meth•o•hex•i•tal Pronunciation: (meth"ō-hek'si-tal"), [key] — n. Pharm. a barbiturate anesthetic, used in its sodium form, CHNNaO, for induction of general anesthesia or for anesthesia of short duration. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. methodology methoprene Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language