Girder

3 definitions found

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

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

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



  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]

From WordNet (r) 2.0 [wn]:

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