\Go"-dev"il\, n. (Mach.)
   (a) A weight which is dropped into a bore, as of an oil
       well, to explode a cartridge previously lowered.
   (b) A device, as a loosely fitted plug, which is driven
       through a pipe by the pressure of the contents behind
       the plug to clear away obstructions.
   (c) A rough sled or dray used for dragging logs, hauling
       stone, etc. [Local, U. S.]