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arris

[ ar-is ]
/ ˈær ɪs /
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noun Architecture.

a sharp ridge, as between adjoining channels of a Doric column.
the line, ridge, or hip formed by the meeting of two surfaces at an exterior angle.

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Also called piend.

Origin of arris

1670–80; <Middle French areste;see arête
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for arris

arris
/ (ˈærɪs) /

noun plural -ris or -rises

a sharp edge at the meeting of two surfaces at an angle with one another, as at two adjacent sides of a stone block
C17: apparently from Old French areste beard of grain, sharp ridge; see arête
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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