ARRIS
Arris
In architecture, an arris is the sharp edge formed by the intersection of two surfaces, such as the corner of a masonry unit; the edge of a timber in timber framing; the junction between two planes of plaster or any intersection of divergent architectural details. Also the raised edges which separate the flutings in a Doric column.The above text is a snippet from Wikipedia: Arris
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arris
Noun
- A sharp edge or ridge formed by the intersection of two curved surfaces
- A ridge formed on the surface of flaked stone that results from the intersection of two or more flake removals. The arris marks the location of flake scars on the dorsal surface of chipped stone. 1
- Buttocks.
The above text is a snippet from Wiktionary: arris
and as such is available under the Creative Commons Attribution/Share-Alike License.