Gird"er (?), n. [From Gird to
sneer at.] One who girds; a satirist.
Gird"er, n. [From Gird to
encircle.]
1. One who, or that which, girds.
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.
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.