Trun"nel, n. (Shipbuilding) See Treenail.
Trun"nion (?), n. [OF. trognon the stock, stump, or truck of a tree, F.
trognon a core, stalk, fr. tron a trunk, stem. Cf. Trunk.] 1. (Gun.) A
cylindrical projection on each side of a piece, whether gun, mortar, or
howitzer, serving to support it on the cheeks of the carriage. See
Illust. of Cannon.
2. (Steam Engine) A gudgeon on each side of an oscillating steam
cylinder, to support it. It is usually tubular, to convey steam.
Trunnion plate (Gun.), a plate in the carriage of a gun, mortar, or
howitzer, which covers the upper part of the cheek, and forms a bearing
under the trunnion. — Trunnion ring (Gun.), a ring on a cannon next
before the trunnions. [R.]
Trun"nioned (?), a. Provided with trunnions; as, the trunnioned
cylinder of an oscillating steam engine.
Tru"sion (?), n. [L. trudere, trusum, to thrust, shove: cf. F.
trusion.] The act of pushing or thrusting. [R.] Bentley.
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.
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.
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.]
Trust (?), n. [OE. trust, trost, Icel. traust confidence, security;
akin to Dan. & Sw. tröst comfort, consolation, G. trost, Goth. trausti
a convention, covenant, and E. true. See True, and cf. Tryst.] 1.
Assured resting of the mind on the integrity, veracity, justice,
friendship, or other sound principle, of another person; confidence;
reliance; reliance. "O ever-failing trust in mortal strength!" Milton.
Most take things upon trust.
Locke.
2. Credit given; especially, delivery of property or merchandise in
reliance upon future payment; exchange without immediate receipt of an
equivalent; as, to sell or buy goods on trust.
3. Assured anticipation; dependence upon something future or
contingent, as if present or actual; hope; belief. "Such trust have we
through Christ." 2 Cor. iii. 4.
His trust was with the Eternal to be deemed Equal in strength.
Milton.
4. That which is committed or intrusted to one; something received in
confidence; charge; deposit.
5. The condition or obligation of one to whom anything is confided;
responsible charge or office.
[I] serve him truly that will put me in trust.
Shak.
Reward them well, if they observe their trust.
Denham.