Pronunciation: sĕ-nē′sē-ō, -shē-ō
- A large genus of plants (family Compositae), many species of which contain alkaloids that produce hepatic necrosis.
- A common weed of the eastern U.S., formerly used in the treatment of amenorrhea and other menstrual irregularities.
[L. a plant, groundsel, fr. senecio, an old man]
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Examples: glitazone, GI cocktail, etc.