The Collaborative International Dictionary of English v.0.48:

Muscadine \Mus"ca*dine\, n. [See Muscadel.]
   1. (Bot.) A name given to several very different kinds of
      grapes, but in America used chiefly for the scuppernong,
      or southern fox grape, which is said to be the parent
      stock of the Catawba. See Grapevine.
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   2. (Bot.) A fragrant and delicious pear.
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   3. (Zool.) See Muscardin.
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   Northern muscadine (Bot.), a derivative of the northern fox
      grape, and scarcely an improvement upon it.

   Royal muscadine (Bot.), a European grape of great value.
      Its berries are large, round, and of a pale amber color.
      Called also golden chasselas.
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