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black knot
noun
, Plant Pathology.
- a disease of plants, especially of plums and cherries, characterized by black knotlike overgrowths on the branches, twigs, etc., caused by a fungus, Dibotryon morbosa.
black knot
noun
- a fungal disease of plums and cherries caused by Dibotryon morbosum , characterized by rough black knotlike swellings on the twigs and branches
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Word History and Origins
Origin of black knot1
An Americanism dating back to 1835–45
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Example Sentences
He then secures a massive black knot belt around her waist and escorts her to her place in line.
From The Daily Beast
It is probably what is termed black knot, only the galls have not turned black yet.
From Project Gutenberg
Suddenly the black knot of warriors dashed into the obstruction, brandishing spears and clubs, and screaming like maniacs.
From Project Gutenberg
It twisted and untwisted the small black knot above the town hotel.
From Project Gutenberg
Even on the old Black-knot this fungus may be readily seen, at any time of the year, covering its entire surface.
From Project Gutenberg
Happily, black-knot may be controlled by cutting out the diseased wood.
From Project Gutenberg
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