Definition of dieback
: a condition in woody plants in which peripheral parts are killed (as by parasites)
Recent Examples of dieback from the Web
Giant conifer aphids can cause foliage to yellow, some needle drop or dieback of shoots.
Within two years of their death or severe dieback, ash trees are falling apart, creating unacceptable hazards for both residents and tree-care companies working to remove those trees.
Premature pruning may cause further dieback, and some limbs that could have recovered on their own might be removed unnecessarily.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dieback.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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