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词汇 pear blight
释义

Definition of pear blight in English:

pear blight

noun
  • 1Either of two destructive diseases of pear trees, one caused by a bacterium, Erwinia amylovora, which turns the leaves rapidly brown (also called fire-blight), and the other caused by any of several beetles which bore into the bark.

  • 2A beetle which causes the latter.

Origin

Mid 19th century; earliest use found in Ebenezer Emmons (1799–1863).

Definition of pear blight in US English:

pear blight

noun
  • 1Either of two destructive diseases of pear trees, one caused by a bacterium, Erwinia amylovora, which turns the leaves rapidly brown (also called fire-blight), and the other caused by any of several beetles which bore into the bark.

  • 2A beetle which causes the latter.

Origin

Mid 19th century; earliest use found in Ebenezer Emmons (1799–1863).

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