[1] : The Collaborative International Dictionary of English v.0.48

diagonal \diag"onal\, a. l. diagonalis, fr. gr. ? from to
   angle; dia` through + ? an angle; perh. akin to e. knee: cf.
   f. diagonal. geom.
   joining two not adjacent angles of a quadrilateral or
   multilateral figure; running across from corner to corner;
   crossing at an angle with one of the sides.
   1913 webster

   diagonal bond masonry, herringbone work. see
      herringbone, a.

   diagonal built shipbuilding, built by forming the outer
      skin of two layers of planking, making angles of about
      45deg with the keel, in opposite directions.

   diagonal cleavage. see under cleavage.

   diagonal molding arch., a chevron or zigzag molding.

   diagonal rib. arch. see cross-springer.

   diagonal scale, a scale which consists of a set of parallel
      lines, with other lines crossing them obliquely, so that
      their intersections furnish smaller subdivisions of the
      unit of measure than could be conveniently marked on a
      plain scale.

   diagonal stratification. geol. same as cross bedding,
      under cross, a.
      1913 webster
see also:
diagonal bond herringbone diagonal built diagonal cleavage cleavage diagonal molding 
diagonal rib cross-springer diagonal scale diagonal stratification cross bedding 
cross 

Molding >> M Words
Molding, definition of term: Molding
molding_pag1.html

Diagonal >> D Words
Diagonal, definition of term: Diagonal
diagonal_pag1.html