/ Dictionary / Index L Lomotil: Meaning and Definition of Find definitions for: Lo•mo•til Pronunciation: (lō-mōt'l), [key] — Pharm., Trademark. Pharm.,Trademark. a brand of diphenoxylate with atropine in its sulfate form, used in the management of diarrhea. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lomotil (Thesaurus) Lomonosov Lompoc Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language