10. (Steam Engine)
Defn: A large pipe forming the piston rod of a steam engine, of sufficient diameter to allow one end of the connecting rod to be attached to the crank, and the other end to pass within the pipe directly to the piston, thus making the engine more compact.
11. A long, large box, pipe, or conductor, made of plank or metal plates, for various uses, as for conveying air to a mine or to a furnace, water to a mill, grain to an elevator, etc. Trunk engine, a marine engine, the piston rod of which is a trunk. See Trunk, 10. — Trunk hose, large breeches formerly worn, reaching to the knees. — Trunk line, the main line of a railway, canal, or route of conveyance. — Trunk turtle (Zoöl.), the leatherback.
TRUNK
Trunk, v. t. Etym: [Cf. F. tronquer. See Truncate.]
1. To lop off; to curtail; to truncate; to maim. [Obs.] "Out of the trunked stock." Spenser.
2. (Mining)
Defn: To extract (ores) from the slimes in which they are contained, by means of a trunk. See Trunk, n., 9. Weale.
TRUNKBACK
Trunk"back`, n. (Zoöl.)
Defn: The leatherback.
TRUNKED
Trunked, a.