/ Dictionary / Index N nightshade: Meaning and Definition of Find definitions for: night•shade Pronunciation: (nīt'shād"), [key] — n. any of various plants of the genus Solanum, esp. the black nightshade or the bittersweet. any of various other related plants, as the deadly nightshade. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nightshade (Thesaurus) night school nightshade family, Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language