/ Dictionary / Index S sinsemilla: Meaning and Definition of Find definitions for: sin•se•mil•la Pronunciation: (sin"su-mil'u), [key] — n. marijuana from seedless female hemp plants that contain very high levels of THC. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. SINS Sinsiang Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language