Dieback definition

dībăk
(biology) The browning and death of a plant shoot starting at the tip, due to either disease or climate conditions.
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The gradual dying of plant shoots, starting at the tips, as a result of various diseases or climatic conditions.
noun
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A disease of vascular plants characterized by a dying backward from the tip of twigs and branches and caused by parasites, insufficient moisture, etc.
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Other Word Forms

Noun

Singular:
dieback
Plural:
diebacks

Origin of dieback