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Definition of Peduncle


  1. The stem or stalk that supports the flower or fruit of a plant, or a cluster of flowers or fruits.
  2. A sort of stem by which certain shells and barnacles are attached to other objects. See Illust. of Barnacle.
  3. A band of nervous or fibrous matter connecting different parts of the brain; as, the peduncles of the cerebellum; the peduncles of the pineal gland.
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