jigging

jigging is defined in Webster's Unabridged Dictionary (1913) with 1 sense. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.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.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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