Pithy \Pith"y\, a. [Compar. {Pithier}; superl. {Pithiest}.]
   1. Consisting wholly, or in part, of pith; abounding in pith;
      as, a pithy stem; a pithy fruit.
      
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   2. Having nervous energy; forceful; cogent.
      
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            This pithy speech prevailed, and all agreed.
                                                  --Dryden.
      
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            In all these Goodman Fact was very short, but pithy.
                                                  --Addison.
      
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   {Pithy gall} (Zool.), a large, rough, furrowed, oblong gall,
      formed on blackberry canes by a small gallfly
      ({Diastrophus nebulosus}).
      
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