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.
  2. Having nervous energy; forceful; cogent.
     This pithy speech prevailed, and all agreed.   --Dryden.
     In all these Goodman Fact was very short, but pithy.   --Addison.
  Pithy gall Zool., a large, rough, furrowed, oblong gall, formed on blackberry canes by a small gallfly (Diastrophus nebulosus).
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  pithy
       adj : concise and full of meaning; "welcomed her pithy comments";
             "the peculiarly sardonic and sententious style in which
             Don Luis composed his epigrams"- Hervey Allen [syn: sententious]
       adv : in a pithy sententious manner; "she expressed herself
             pithily" [syn: sententiously]
       [also: pithiest, pithier]