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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coquilla nut
n : nut having a hard hazel-brown shell used like vegetable
ivory