seed·er /ˈsidɚ/
  播種者,播種機,去核器
  Seed·er n. One who, or that which, sows or plants seed.
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  seeder
       n 1: a person who seeds clouds [syn: cloud seeder]
       2: a mechanical device that sows grass seed or grain evenly
          over the ground
       3: a kitchen utensil that removes seeds from fruit