What is Truss?

Truss definition and meaning on Dictionary terms:
verb (used with object)

to tie, bind, or fasten.
to make fast with skewers, thread, or the like, as the wings or legs of a fowl in preparation for cooking.
to furnish or support with a truss or trusses.
to tie or secure (the body) closely or tightly; bind (often followed by up).
Falconry. (of a hawk, falcon, etc.) to grasp (prey) firmly.