the world > animals > birds > parts of or bird defined by > [noun] > wing or wings > expanse or extent of wings ( and tail) (4)
transferred. The expanse of the wings (of a bird).
transferred. See quot. 1759. Obsolete.
The distance between the tips of the outstretched wings of a bird or aircraft, or between the fingertips of outstretched arms. Cf. span, n.1 5d.