1. Noun.  The fruit of the oak, being an oval nut growing in a woody cup or cupule.
  2. Noun.  (nautical) A cone-shaped piece of wood on the point of the spindle above the vane, on the mast-head.
  3. Noun.  (context, zoology) See ''acorn-shell''.

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This entry was last updated on RefTopia from its source on 3/20/2012.