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chestnut blight
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a disease of chestnut trees, caused by a fungus (Endothia parasitica), that has virtually destroyed the American chestnut
See chestnut blight in American Heritage Dictionary 4
noun
A disease of chestnut trees caused by a fungus (Cryphonectria parasitica) that is especially destructive to the American chestnut, characterized by cankers that eventually kill the branches and trunk.
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