senna

Pronunciation: /ˈsɛnə/

The English word “senna” has 3 meanings listed here.

noun

Any of several plants of the tribe Cassieae, especially those of the genera Cassia and Senna, whose leaves and pods are used as a purgative and laxative.
The dried leaves or pods of these plants (especially of Senna alexandrina, syn. Cassia angustifolia or Cassia acutifolia), used medicinally.
Senna glycoside, a laxative.

From Arabic سَنَا (sanā, “senna”).

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.