senna Hear it!

senna definition

senna (sen′ə)

noun

  1. any of a genus (Cassia) of plants of the caesalpinia family, with finely divided leaves and yellow flowers
  2. the dried leaflets of various sennas, used, esp. formerly, as a laxative

Etymology: ML sene < Ar sanā

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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