Entry 1 sense Webster, 1913 Datura /dət-o͝or'-ə/ · Da·tu·ra · IPA /dətˈʊrə/ 01 n. A genus of solanaceous plants, with large funnel-shaped flowers and a four-celled, capsular fruit. 1. A genus of solanaceous plants, with large funnel-shaped flowers and a four-celled, capsular fruit.(Bot.)