/ Dictionary / Index M methantheline: Meaning and Definition of Find definitions for: meth•an•the•line Pronunciation: (me-than'thu-lēn"), [key] — n. Pharm. a compound, CHBrNO, used in the form of its bromide in the treatment of excessive sweating and salivation, peptic ulcer, stomach cramps, and other conditions resulting from nerve dysfunction. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. methanol methaqualone 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