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weathercoat

American  
[weth-er-koht] / ˈwɛð ərˌkoʊt /

noun

  1. Also weathercoating. a weatherproof coating, coating, applied especially to the exterior of a building.

  2. Chiefly British.  a waterproof coat for wear in bad weather.


Etymology

Origin of weathercoat

First recorded in 1895–1900; weather + coat