noun
: a disease of alfalfa caused by a fungus ( Pyrenopeziza medicaginis ) and characterized by bright yellow or orange spots with small black dots chiefly on the undersides of the leaves
noun
: a disease of alfalfa caused by a fungus ( Pyrenopeziza medicaginis ) and characterized by bright yellow or orange spots with small black dots chiefly on the undersides of the leaves
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012