girder gird • girderage · · · Info · Definitions · Characters · · girder · · Text Latin · · Script 6 · · Length Definitions · · · (noun) a beam made usually of steel; a main support in a structure. · · Noun Definition 1 Characters · · d latin small letter d U+0064 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 r latin small letter r U+0072