pruner
 剪枝剪


 Prun·er n.
 1. One who prunes, or removes, what is superfluous.
 2. Zool. Any one of several species of beetles whose larvæ gnaw the branches of trees so as to cause them to fall, especially the American oak pruner (Asemum mœstum), whose larva eats the pith of oak branches, and when mature gnaws a circular furrow on the inside nearly to the bark. When the branches fall each contains a pupa.

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 pruner
      n 1: a worker who thins out and trims trees and shrubs;
           "untouched by the pruner's axe" [syn: trimmer]
      2: a long-handled edge tool with a curved blade at the end and
         sometimes a clipper; used to prune small trees [syn: {pruning
         hook, lopper]