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arris

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noun ar·ris \ˈa-rəs, ˈer-əs\

Definition of arris

plural arris or arrises

  1. :  the sharp edge or salient angle formed by the meeting of two surfaces especially in moldings



Origin of arris

probably modification of Middle French areste, literally, fishbone, from Late Latin arista — more at arête


First Known Use: 1677

Rhymes with arris


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