wingspan
/ˈwɪŋspæn/Definitions
1. noun
The width of an animal’s outstretched wings from tip to tip.
“The ornithologist measured the wingspan of the large eagle.”
2. noun
The width of something, such as a building’s wing or a room, measured from one outer extremity to another.
“The architect designed the new office building with a large wingspan to accommodate many employees.”