Arris

Pronunciation

• IPA: /ˈæɹɪs/

Origin

From Old French areste, from Latin arista ("beard (of grain), fishbone")

Full definition of arris

Noun

1. A sharp edge or ridge formed by the intersection of two surfaces
2. (architecture) A sharp edge or ridge formed by the intersection of two curved surfaces
3. (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.Andrefsky, W. (2005) Lithics: Macroscopic Approaches to Analysis. 2d Ed. Cambridge, Cambridge University Press. P. 252 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
4. (UK, slang) Buttocks, arse.

Derived terms

• arris fillet
• arris gutter
• arris rail
• arriswise