noun
: a longitudinal thickening resembling a true vein or nervure and situated in the membrane of the wing of a fly between the radius and media — compare syrphus fly
noun
: a longitudinal thickening resembling a true vein or nervure and situated in the membrane of the wing of a fly between the radius and media — compare syrphus fly
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012