Arris(redirected from arrises)
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Related to arrises: arises
A short edge or angle at the junction of two surfaces, especially moldings and raised edges.
1. An external angular intersection between two planar faces (an edge), or two curved faces, as in moldings or between two flutes on a Doric column or between a flute and the fillet on an Ionic or a Corinthian column.
2. The sharp edge of a brick.