noun
1. : a fungus disease of the onion that is especially destructive to seedlings and is characterized by elongate blackish blisters on the scales and leaves
2. : the fungus ( Urocystis cepulae ) that causes onion smut
noun
1. : a fungus disease of the onion that is especially destructive to seedlings and is characterized by elongate blackish blisters on the scales and leaves
2. : the fungus ( Urocystis cepulae ) that causes onion smut
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012