3. (Naut.) (a) A light tackle, consisting of a double and single block and the fall, used for various purposes, as to increase the purchase on a topsail sheet in hauling it home; the watch tackle. Totten. (b) A small fishing vessel, rigged like a yawl. [New Eng.] (c) A supplementary sail. See Dandy, n., 2 (b).
4. A pendulum rolling machine for slicking or graining leather; same as Jack, 4 (i). Jigger mast. (Naut.) (a) The after mast of a four- masted vessel. (b) The small mast set at the stern of a yawlrigged boat.
JIGGING
Jig"ging, n. (Mining)
Defn: The act or using a jig; the act of separating ore with a jigger, or wire-bottomed sieve, which is moved up and down in water. Jigging machine. (a) (Mining) A machine for separating ore by the process of jigging. (b) (Metal Working) A machine with a rotary milling cutter and a templet by which the action of the cutter is guided or limited; — used for forming the profile of an irregularly shaped piece; a profiling machine.
JIGGISH
Jig"gish, a.
1. Resembling, or suitable for, a jig, or lively movement. Tatler.
2. Playful; frisky. [R.] She is never sad, and yet not jiggish. Habington.
JIGGLE
Jig"gle, v. i. Etym: [Freq. of jig.]
Defn: To wriggle or frisk about; to move awkwardly; to shake up and down.
JIGJOG
Jig"jog`, n.