girder

3 definitions found

girder - Collaborative International Dictionary of English v.0.48 :

  Girder \Gird"er\, n. [From Gird to sneer at.]
     One who girds; a satirist.
     [1913 Webster]

  Girder \Gird"er\, n. [From Gird to encircle.]
     [1913 Webster]
     1. One who, or that which, girds.
        [1913 Webster]
  
     2. (Arch. & Engin.) A main beam; a stright, horizontal beam
        to span an opening or carry weight, such as ends of floor
        beams, etc.; hence, a framed or built-up member
        discharging the same office, technically called a compound
        girder. See Illusts. of Frame, and Doubleframed floor,
        under Double.
        [1913 Webster]
  
     Bowstring girder, Box girder, etc. See under Bowstring,
        Box, etc.
  
     Girder bridge. See under Bridge.
  
     Lattice girder, a girder consisting of longitudinal bars
        united by diagonal crossing bars.
  
     Half-lattice girder, a girder consisting of horizontal
        upper and lower bars connected by a series of diagonal
        bars sloping alternately in opposite directions so as to
        divide the space between the bars into a series of
        triangles. --Knight.
  
     Sandwich girder, a girder consisting of two parallel wooden
        beams, between which is an iron plate, the whole clamped
        together by iron bolts.
        [1913 Webster]

girder - WordNet (r) 2.1 (2005) :

  girder
      n 1: a beam made usually of steel; a main support in a structure