Wiv·er Wiv·ern n.
  1. Her. A fabulous two-legged, winged creature, like a cockatrice, but having the head of a dragon, and without spurs.  [Written also wyvern.]
     The jargon of heraldry, its griffins, its mold warps, its wiverns, and its dragons.   --Sir W. Scott.
  2. Zool. The weever.
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