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Meaning of JIGGING

 
Webster's 1913 Dictionary
 
 Definition: 
\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.

 

 

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