arris

noun — 3 senses

arris

noun

/ˈæɹɪs/

Etymology From Old French areste, from Latin arista (“beard (of grain), fishbone”). Doublet of arista.

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, History, Human sciences, Sciences A ridge formed on the surface of flaked stone, such as an arrowhead or hand axe, as the result of the intersection of two or more flake removals.

Derived terms
arris fillet, arris gutter, arris rail, arriswise

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.