/ Dictionary / Index M methyltrinitrobenzene: Meaning and Definition of Find definitions for: meth•yl•tri•ni•tro•ben•zene Pronunciation: (meth'ul-trī-nī"trō-ben'zēn, -ben-zēn'), [key] — n. Chem. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. methyl transferase methysergide Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language