Gel·se·mine n. Chem. An alkaloid obtained from the yellow jasmine (Gelsemium sempervirens), as a bitter white semicrystalline substance; -- called also gelsemia.
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  Gel·se·min·ic n. Chem. Pertaining to, or derived from, the yellow jasmine (Gelsemium sempervirens); as, gelseminic acid, a white crystalline substance resembling esculin.
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  Gel·se·mium n.
  1. Bot. A genus of climbing plants. The yellow (false) jasmine (Gelsemium sempervirens) is a native of the Southern United States. It has showy and deliciously fragrant flowers.
  2. Med. The root of the yellow jasmine, used in malarial fevers, etc.
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  Gelsemium sempervirens
       n : poisonous woody evergreen vine of southeastern United States
           having fragrant yellow funnel-shaped flowers [syn: yellow
           jasmine, yellow jessamine, Carolina jasmine, evening
           trumpet flower]