\Truss\, n. [OE. trusse, F. trousse, OF. also tourse;
perhaps fr. L. tryrsus stalk, stem. Cf. {Thyrsus}, {Torso},
{Trousers}, {Trousseau}.]
1. A bundle; a package; as, a truss of grass. --Fabyan.
         Bearing a truss of trifles at his back. --Spenser.
Note: A truss of hay in England is 56 lbs. of old and 60 lbs.
      of new hay; a truss of straw is 36 lbs.
2. A padded jacket or dress worn under armor, to protect the
   body from the effects of friction; also, a part of a
   woman's dress; a stomacher. [Obs.] --Nares.
         Puts off his palmer's weed unto his truss, which
         bore The stains of ancient arms.      --Drayton.
3. (Surg.) A bandage or apparatus used in cases of hernia, to
   keep up the reduced parts and hinder further protrusion,
   and for other purposes.
4. (Bot.) A tuft of flowers formed at the top of the main
   stalk, or stem, of certain plants.
5. (Naut.) The rope or iron used to keep the center of a yard
   to the mast.
6. (Arch. & Engin.) An assemblage of members of wood or
   metal, supported at two points, and arranged to transmit
   pressure vertically to those points, with the least
   possible strain across the length of any member.
   Architectural trusses when left visible, as in open timber
   roofs, often contain members not needed for construction,
   or are built with greater massiveness than is requisite,
   or are composed in unscientific ways in accordance with
   the exigencies of style.
{Truss rod}, a rod which forms the tension member of a
   trussed beam, or a tie rod in a truss.

\Truss\, v. t. [imp. & p. p. {Trussed}; p. pr. & vb. n.
{Trussing}.] [F. trousser. See {Truss}, n.]
1. To bind or pack close; to make into a truss. --Shak.
         It [his hood] was trussed up in his wallet.
                                               --Chaucer.
2. To take fast hold of; to seize and hold firmly; to pounce
   upon. [Obs.]
         Who trussing me as eagle doth his prey. --Spenser.
3. To strengthen or stiffen, as a beam or girder, by means of
   a brace or braces.
4. To skewer; to make fast, as the wings of a fowl to the
   body in cooking it.
5. To execute by hanging; to hang; -- usually with up.
   [Slang.] --Sir W. Scott.
{To truss a person} or {one's self}, to adjust and fasten the
   clothing of; especially, to draw tight and tie the laces
   of garments. [Obs.] ``Enter Honeysuckle, in his nightcap,
   trussing himself.'' --J. Webster (1607).
{To truss up}, to strain; to make close or tight.
{Trussed beam}, a beam which is stiffened by a system of
   braces constituting a truss of which the beam is a chord.