اسم ( noun )
• (1) تعریف: a rotary tool used to clean out an oil pipeline.
• (2) تعریف: a metal dart dropped into an oil well to set off a previously placed explosive such as dynamite.
• (3) تعریف: a sled used to haul logs, stones, or the like.
• (4) تعریف: a handcar used on a railroad.