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Medical Definition of Ergot poisoning
1. A syndrome brought on by the consumption of bread (notably rye) contaminated by the ergot fungus, Claviceps purpurea (rye smut), the source of numerous ergot alkaloids. The effects observed include peripheral vascular constriction leading to gangrene, partial paralysis with numbing, tingling and burning in the limbs, feeble pulse, restlessness, stupor or delirium. Can prove fatal. (05 Mar 2000)