Pruning

n.
  1. The act of trimming, or removing what is superfluous.
  2. (Falconry) That which is cast off by bird in pruning her feathers; leavings.
    3. Pruning hook, or Pruning knife ,
    cutting instrument used in pruning trees, etc.
    Pruning shears ,
    shears for pruning trees, vines, etc.