Dictionary

arris

noun ar·ris \ˈa-rəs, ˈer-əs\
plural arris or ar·ris·es

Definition of ARRIS

:  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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