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Definition of die-off
die-off
Plural:die-offs
• noun
1
A sudden, widespread decline in the population of a plant or animal species, typically caused by disease, drought, pollution, or habitat loss.
Example
"Rising ocean temperatures triggered a massive coral die-off across the barrier reef."
Synonyms
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Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Die-off. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/die--off