arris

[ ar-is ]
/ ˈær ɪs /

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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decorum
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. 2020

Example sentences from the Web for arrises

British Dictionary definitions for arrises

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

Word Origin for arris

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