wingspread

[wing-spred] /ˈwɪŋˌsprɛd/
noun
1.
the distance between the most outward tips of the wings when they are as extended as possible.
Origin
1895-1900; wing + spread
Examples from the web for wingspread
  • Adults have a wingspread of an inch or so and are buff to brown in color.
  • The moths, active mostly at night, are brownish gray and the males have a wingspread of about an inch.
British Dictionary definitions for wingspread

wingspan

/ˈwɪŋˌspæn/
noun
1.
the distance between the wing tips of an aircraft, bird, etc