plural extinctions
: the state or situation that results when something (such as a plant or animal species) has died out completely
the extinction of all life in the region
Several bird species are threatened with extinction. = Several bird species are on the brink of extinction.
the extinction of many old traditions
Mass extinctions of prehistoric animals are known to have occurred.
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“Extinction.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/extinction. Accessed 23 Jun. 2026.
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