true senna true·senna uncommon noun 1. erect shrub having racemes of tawny yellow flowers; the dried leaves are used medicinally as a cathartic; sometimes placed in genus Cassia SynonymsAlexandria sennaAlexandrian sennatrue sennatinnevelly sennaIndian sennaSenna alexandrinaCassia acutifoliaCassia augustifolia Related words Broader terms senna WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
