seneciosis
noun
se·ne·ci·o·sis
| \ si-ˌnē-sē-ˈō-səs
\
\
plural senecioses\ -ˌsēz
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Medical Definition of seneciosis
: a frequently fatal intoxication especially of livestock feeding on plants of the genus Senecio that is marked by intense acute or chronic necrosis and cirrhosis of the liver