Poisoning by ingestion of ergot-infected grain products; characterized by thirst and diarrhea and nausea and cramping and vomiting and abnormal cardiac rhythms; in severe cases it can cause seizures and gangrene of the limbs WordNet 3.0 & Open English WordNet

Ergotism is the effect of long-term ergot poisoning, traditionally due to the ingestion of the alkaloids produced by the Claviceps purpurea fungus—from the Latin noun clava meaning club, and the suffix -ceps meaning head, i.e. the purple club-headed fungus—that infects rye and other cereals, and more recently by the action of a number of ergoline-based drugs. Wikipedia

The effect of long-term ergot poisoning, traditionally due to the ingestion of alkaloids Wikipedia Disambiguation

Effect of long-term ergot poisoning Wikidata

Poisoning caused by the ingestion of ergot fungi which infect rye and other cereals. OmegaWiki

The effect of long-term ergot poisoning, traditionally due to the ingestion of the alkaloids produced by the Claviceps purpurea fungus which infects rye and other cereals, and more recently by the action of a number of ergoline-based drugs. Wiktionary