arris

1 definition found

arris - Collaborative International Dictionary of English v.0.48 :

  Arris \Ar"ris\, n. [OF. areste, F. ar[^e]te, fr. L. arista the
     top or beard of an ear of grain, the bone of a fish.] (Arch.)
     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. --P.
     Cyc.
     [1913 Webster]
  
     Arris fillet, a triangular piece of wood used to raise the
        slates of a roof against a chimney or wall, to throw off
        the rain. --Gwilt.
  
     Arris gutter, a gutter of a V form fixed to the eaves of a
        building. --Gwilt.
        [1913 Webster]