loop·er /ˈlupɚ/
  作圈環的人,作線環的裝置
  Loop·er n.
  1. An instrument, as a bodkin, for forming a loop in yarn, a cord, etc.
  2. Zool. The larva of any species of geometrid moths. See Geometrid.
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  looper
       n : small hairless caterpillar having legs on only its front and
           rear segments; mostly larvae of moths of the family
           Geometridae [syn: measuring worm, inchworm]