wingspan

n. measure of the length between the tips of the wings (of an airplane, bird, etc.)

The wingspan (or just span) of an airplane is the distance from the left wingtip to the right wingtip. For example, the Boeing 777 has a wingspan of about 60 m (200 feet). The term wingspan, more technically extent, is also used for birds, and other winged animals such as pterosaurs, bats, insects, etc. For example, a Wandering Albatross (Diomedea exulans) caught in 1965 had a wingspan of 3.63 m, the official record for a living bird.
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Noun
1. linear distance between the extremities of an airfoil
(synonym) wingspread
(hypernym) distance, length

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