A tapestry or wall hanging.
A sharp edge or ridge formed by the intersection of two surfaces
Tapestry; a rich figured fabric; especially, a screen or hangings of heavy cloth with interwoven figures.
‘Stateliest couches, with rich arras spread.’; ‘Behind the arras I'll convey myself.’;
(architecture) A sharp edge or ridge formed by the intersection of two curved surfaces
To furnish with an arras.
(archaeology) 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. [http://books.google.com/books?id=L6LAsLpx46IC&pg=PA252&lpg=PA252&dq=arris+lithic&source=web&ots=VMpCZX_xc-&sig=sW0DjBW6Lg_NdAGKi8ML875OcfI&hl=en&sa=X&oi=book_result&resnum=4&ct=result#PPA252,M1]
a wall hanging of heavy handwoven fabric with pictorial designs
(Cockney rhyming slang) Buttocks, arse.
Arras ( ARR-əss, French: [aʁɑs] (listen); Picard: Aro; Historical Dutch: Atrecht [ˈaːtrɛxt] (listen)) is the capital (chef-lieu/préfecture) of the Pas-de-Calais department, which forms part of the region of Hauts-de-France; prior to the reorganization of 2014 it was located in Nord-Pas-de-Calais. The historic centre of the Artois region, with a Baroque town square, Arras is located in Northern France at the confluence of the Scarpe river and the Crinchon River.The Arras plain lies on a large chalk plateau bordered on the north by the Marqueffles fault, on the southwest by the Artois and Ternois hills, and on the south by the slopes of Beaufort-Blavincourt.
The sharp edge or salient angle formed by two surfaces meeting each other, whether plane or curved; - applied particularly to the edges in moldings, and to the raised edges which separate the flutings in a Doric column.
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. The term also refers to the raised edges which separate the flutings in a Doric column.