noun
: a virus disease of turkeys marked by inflammation of the lining of the infraorbital sinuses resulting in great distention of the sinuses and by exudate that interferes with vision and indirectly with nutrition
noun
: a virus disease of turkeys marked by inflammation of the lining of the infraorbital sinuses resulting in great distention of the sinuses and by exudate that interferes with vision and indirectly with nutrition
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012