p. pr. & vb. n. - of Truss
n. - The timbers, etc., which form a truss, taken collectively.
n. - 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.
n. - The act of a hawk, or other bird of prey, in seizing its quarry, and soaring with it into air.