[{"Bold_text": "noun", "List Items": ["Plant Pathology.a disease of rye and other cereal grasses, caused by a fungus of the genus Claviceps,especially C. purpurea,which replaces the affected grain with a long, hard, blackish sclerotial body.the sclerotial body itself.", "a disease of rye and other cereal grasses, caused by a fungus of the genus Claviceps,especially C. purpurea,which replaces the affected grain with a long, hard, blackish sclerotial body.", "the sclerotial body itself.", "Pharmacology.the dried sclerotium of C. purpurea,developed on rye plants: used in the production of ergotamine and ergotoxine."]}]