| senecio | <botany> A very large genus of composite plants including the groundsel and the golden ragwort. Origin: L, groundsel, lit, an old man. So called in allusion to the hoary appearance of the pappus. Source: Websters Dictionary (01 Mar 1998) |
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| senecioic acid | (CH3)2C==CH-COOH; 3-Methyl-2-butenoic acid; 3,3-dimethylacrylic acid; methylcrotonic acid;a polymer precursor and a precursor of isoprenoid and terpene compounds; the acid component of binapacryl in which it is esterified with 4,6-dinitro-2-(1-methylpropyl)phenol; the coenzyme A derivative is an intermediate in l-leucine degradation; used as a fungicide and miticide. (05 Mar 2000) |
| seneciosis | Liver degeneration and necrosis caused by ingestion of plants of the genus Senecio, such as ragwort and groundsel; similar hepatotoxic properties have been observed after ingestion of some kinds of Crotalaria and Heliotropium. (05 Mar 2000) |