Girder (n.) One who girds |
Girder (n.) One who, or that which, girds. |
Girder (n.) A main beam |
Trapezoidal (a.) Having the form of a trapezoid |
Trapezoidal (a.) Trapezohedral. |
box beam box girder | a beam built up from boards, has a hollow rectangular cross section |
girder | a beam made usually of steel, a main support in a structure |
trapezoidal | resembling a trapezoid |