Jig"ger, n. [See Jig, n. & v.]

1. One who, or that which, jigs; specifically, a miner who sorts or

cleans ore by the process of jigging; also, the sieve used in jigging.

2. (Pottery) (a) A horizontal table carrying a revolving mold, on which

earthen vessels are shaped by rapid motion; a potter's wheel. (b) A

templet or tool by which vessels are shaped on a potter's wheel.

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 yawl-rigged boat.

Jig"ging (?), n. (Mining) 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.

Jig"gish (?), a. 1. Resembling, or suitable for, a jig, or lively

movement. Tatler.

The Gutenberg Webster's Unabridged Dictionary: Section I, J, K, and L · 第 1239 / 2341 题