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

  • n. A fungal disease that causes timber to become brittle and crumble into powder.
  • n. A plant disease in which the plant tissue remains relatively dry while fungi invade and ultimately decay bulbs, fruits, or woody tissues.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The crumbly, friable decayed portions of wooden members of buildings, especially at or below grade, usually caused by a fungal infection.
  • n. Metaphorically, a progressive malaise of decay, corruption, or datedness.

from the GNU version of the Collaborative International Dictionary of English

  • adj. a decay of timber, reducing its fibers to the condition of a dry powdery dust, often accompanied by the presence of a peculiar fungus (Merulius lacrymans), which is sometimes considered the cause of the decay; but it is more probable that the real cause is the decomposition of the wood itself. D. C. Eaton. Called also sap rot, and, in the United States, powder post.
  • n. See under Dry.

from The Century Dictionary and Cyclopedia

  • n. A decay affecting timber, occasioned by various species of fun-gi, the mycelium of which penetrates the timber, destroying it.
  • n. Figuratively, a concealed or unsuspected inward decay or degeneration, as of public morals or public spirit.
  • n.
  • To affect with dry-rot.

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

  • n. a crumbling and drying of timber or bulbs or potatoes or fruit caused by a fungus
  • n. a fungus causing dry rot
  • v. affect or be affected with dry rot


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