cloud base

noun

variants or less commonly cloudbase

ˈklau̇d-ˌbās 

plural cloud bases also cloudbases

: the lower edge of a cloud or cloud system

a low cloud base

The tools of its trade include a pair of wings that can take it soaring to cloudbase or turn it into a feathered projectile capable of gliding or diving at 95 km/h …

—Peter Meredith, Australian Geographic, January–March 1990

Word History

First Known Use

1891, in the meaning defined above

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