• The sifting, dressing, or sorting of ore by means of a jigging-machine.
  • 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.
  • A machine with a rotary milling cutter and a template by which the action of the cutter is guided or limited; -- used for forming the profile of an irregularly shaped piece; a profiling machine.
  • Present participle of <xref>jig</xref>.
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