noun
: a canker that lives over from one season to the next ; specifically : a serious disease of apples caused by a fungus ( Gloeosporium perennans ) and characterized by cankers on the trunk and limbs
noun
: a canker that lives over from one season to the next ; specifically : a serious disease of apples caused by a fungus ( Gloeosporium perennans ) and characterized by cankers on the trunk and limbs
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012