noun
: a boron deficiency disease of tobacco marked especially by a pale green color appearing first in the leaves of the terminal bud and by bases that are paler than the tips
noun
: a boron deficiency disease of tobacco marked especially by a pale green color appearing first in the leaves of the terminal bud and by bases that are paler than the tips
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012