2. (Steam Engine)
Defn: 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.]
TRUNNIONED
Trun"nioned, a.
Defn: Provided with trunnions; as, the trunnioned cylinder of an oscillating steam engine.
TRUSION Tru"sion, n. Etym: [L.trudere, trusum, to thrust, shove: cf. F. trusion.]
Defn: The act of pushing or thrusting. [R.] Bentley.
TRUSS
Truss, n. Etym: [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.