Pi·as·sa·va n.  A fibrous product of two Brazilian palm trees (Attalea funifera and Leopoldinia Piassaba), -- used in making brooms, and for other purposes. Called also piaçaba and piasaba.
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  Co·quil·la nut  Bot. The fruit of a Brazilian tree (Attalea funifera of Martius.).
  Note: ☞ Its shell is hazel-brown in color, very hard and close in texture, and much used by turners in forming ornamental articles, such as knobs for umbrella handles.
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  Attalea funifera
       n : Brazilian palm yielding fibers used in making ropes, mats,
           and brushes [syn: piassava palm, pissaba palm, Bahia
           piassava, bahia coquilla]