noun
: a necrosis of the phloem of the potato tuber caused by frost or the leaf roll virus in which the pith and cortex contain a broken netlike pattern of necrotic cells
noun
: a necrosis of the phloem of the potato tuber caused by frost or the leaf roll virus in which the pith and cortex contain a broken netlike pattern of necrotic cells
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012