wingspan
noun/ˈwɪŋ.spæn/
Etymology From wing + span.
1
The distance from the left wingtip to the right wingtip (of a bird, airplane etc.).
- The wandering albatross has the largest wingspan of any living bird.
- The Airbus A380 has one of the largest wingspans among aircraft; only a few surpass it.
2
Synonym of arm span.