Definition of senna in English:


Line breaks: senna
Pronunciation: /ˈsɛnə


  • 1The cassia tree.
    More example sentences
    • Senna grows in most tropical regions of the world.
    • Even we do not use irrigation and fumigation to our field used for growing senna.
  • 1.1 [mass noun] A laxative prepared from the dried pods of the cassia tree.
    More example sentences
    • The non-osmotic laxatives, phenolphthalein and senna, partly act by stimulating secretory mechanisms in the intestine.
    • Do not use strong laxatives, such as the stimulant laxative senna, on a routine basis unless on the advice of doctor, because long term use of such laxatives can be harmful.
    • A 40-year-old woman with Rett syndrome presented to her general practitioner with a long-standing history of abdominal pain, loss of appetite, and constipation requiring laxatives including senna.
  • 1.2Used in names of plants of the pea family that are similar to senna, e.g. bladder senna.
    More example sentences
    • The Department of Environment and Conservation has identified 7 priority actions to help recover the Bladder Senna in New South Wales.
    • Originally, Alexandrian senna was obtained principally from Sudan, but it is now cultivated in both Egypt and Sudan.


mid 16th century: from medieval Latin sena, from Arabic sanā.

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