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

  • n. Any of several diseases of pine trees caused by certain fungi of the genus Cronartium, resulting in conspicuous blistering and often dieback of affected areas.

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

  • n. fungus causing white pine blister rust and having a complex life cycle requiring a plant of genus Ribes as alternate host
  • n. any of several diseases of pines caused by rust fungi of the genus Cronartium and marked by destructive invasion of bark and sapwood and producing blisters externally


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