/ Dictionary / Index S Sinemet: Meaning and Definition of Find definitions for: Si•ne•met Pronunciation: (sī'nu-met"), [key] — Pharm., Trademark. Pharm.,Trademark. a brand name for a tablet preparation used in the symptomatic treatment of parkinsonism. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sine die sine prole Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language