Anthracnose \An*thrac"nose`\, n. [Gr. ?, ?, carbuncle + ? disease.] (Bot.) Any one of several fungus diseases, caused by parasitic species of the series {Melanconiales}, attacking the bean, grape, melon, cotton, and other plants. In the case of the grape, brown concave spots are formed on the stem and fruit, and the disease is called {bird's-eye rot}.