from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An insect gall on oak trees, caused by certain wasp larvae.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Oak gall.

from the GNU version of the Collaborative International Dictionary of English

  • n. a large, smooth, round gall produced on the leaves of the American red oak by a gallfly (Cynips confluens). It is green and pulpy when young.

from The Century Dictionary and Cyclopedia

  • n. An oak-gall. See gal.
  • n. In Australia, a cone of any one of several species of Casuarina, or she-oak, especially C. stricta. The young cones and foliage have an acid taste when chewed, and afford great relief in cases of thirst. See she-oak and Casuarina.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. oak gall caused by larvae of a cynipid wasp


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