‖Gel‐se″mium (?), n. [NL., fr. It. gelsomino jasmine.] 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.