any plant, shrub, or tree belonging to the genus Cassia, of the legume family, having pinnate leaves and large clusters of flowers.
any of various cathartic drugs consisting of the dried leaflets of certain of these plants, as one drug (Alexandrian senna ) derived from C. acutifolia, or another (Tinnevelly senna ) derived from C. angustifolia.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use senna in a sentence
Jacob Bernstein on why the Academy snubbed Bill Cunningham New York, senna, and other crowd-pleasers.Oscar’s Documentary Myopia: Popular Films Don’t Get Nominated | Jacob Bernstein | February 2, 2012 | THE DAILY BEAST
Sometimes he ate dry senna and raisins mixed on a plate, and we teased away the raisins, and he had to chew the senna "bare."Aunt Madge's Story | Sophie May
Concentrated infusion of senna, as generally met with, is nearly worthless.
Soak prunes over night in cold water to cover, add the senna leaves tied in cheesecloth, and cook slowly until prunes are tender.Better Meals for Less Money | Mary Green
As to the bowels, some senna and camomile tea at bedtime would help to clear them.The Healthy Life, Vol. V, Nos. 24-28 | Various
A mixture of castor and codliver oil, senna and asafœtida would have been nectar compared with it.Life in an Indian Outpost | Gordon Casserly
British Dictionary definitions for senna (1 of 2)
any of various tropical plants of the leguminous genus Cassia, esp C. angustifolia (Arabian senna) and C. acutifolia (Alexandrian senna), having typically yellow flowers and long pods
senna leaf the dried leaflets of any of these plants, used as a cathartic and laxative
senna pods the dried fruits of any of these plants, used as a cathartic and laxative
- See also bladder senna
British Dictionary definitions for Senna (2 of 2)
Ayrton (ˈɛətən). 1960–94, Brazilian racing driver: world champion (1988, 1990, 1991)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012