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senna

[sen-uh] /ˈsɛn ə/
noun
1.
any plant, shrub, or tree belonging to the genus Cassia, of the legume family, having pinnate leaves and large clusters of flowers.
2.
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.
Origin
1535-1545
1535-45; < Neo-Latin < Arabic sanā
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for senna
  • senna spun off the wet track after only seven laps, causing some damage to the car on his debut with the team.
  • Wild senna is somewhat available as seed of plants from commercial nurseries specializing in native plants.
British Dictionary definitions for senna

senna

/ˈsɛnə/
noun
1.
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
2.
senna leaf, the dried leaflets of any of these plants, used as a cathartic and laxative
3.
senna pods, the dried fruits of any of these plants, used as a cathartic and laxative
See also bladder senna
Word Origin
C16: via New Latin from Arabic sanā

Senna

/ˈsɛnə/
noun
1.
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
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Word Origin and History for senna
n.

tropical shrub, 1540s, from Modern Latin senna, from Arabic sana. Earlier was sene (c.1400), from French.

Online Etymology Dictionary, © 2010 Douglas Harper
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5
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