\Truss"ing\, n.
1. (Arch. & Engin.) The timbers, etc., which form a truss,
   taken collectively. --Weale.
2. (Arch. & Engin.) The art of stiffening or bracing a set of
   timbers, or the like, by putting in struts, ties, etc.,
   till it has something of the character of a truss.
3. The act of a hawk, or other bird of prey, in seizing its
   quarry, and soaring with it into air. [Obs.]