gelsemium

[jel-see-mee-uh m]
noun, plural gel·se·mi·ums, gel·se·mi·a [jel-see-mee-uh] /dʒɛlˈsi mi ə/.
  1. the dried rhizome and root of yellow jasmine, formerly used as a sedative in the form of a powder, tincture, or fluid extract.

Origin of gelsemium

1870–75; < New Latin < Italian gelsom(ino) jasmine + Latin -ium -ium
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British Dictionary definitions for gelsemium

gelsemium

noun plural -miums or -mia (-mɪə)
  1. any climbing shrub of the loganiaceous genus Gelsemium, of SE Asia and North America, esp the yellow jasmine, having fragrant yellow flowers
  2. the powdered root of the yellow jasmine, formerly used as a sedative

Word Origin for gelsemium

C19: New Latin, from Italian gelsomino jasmine
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