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1. Dictionary

   Ex·tinc·tion

   /ikˈstiNG(k)SH(ə)n/

   

   noun

   • 1. the fact or process of a species, family, or other group of animals or plants becoming extinct: "preventing the extinction of this unique frog will require the restoration of ponds and surrounding habitats"
   • ▪ the process of a particular thing ceasing to exist: "he joined the chorus of those predicting the extinction of newsprint"
   • ▪ the wiping out of a debt: "a private debt extinction fund"
   • 2. reduction in the intensity of light or other radiation as it passes through a medium or object, due to absorption, reflection, and scattering: "ultraviolet extinction"

   Word Origin late Middle English: from Latin exstinctio(n-), from exstinguere ‘quench’ (see extinguish).

   Scrabble Points: 19

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2. People also ask

   What is extinction in biology?

   • The Editors of Encyclopaedia Britannica This article was most recently revised and updated by Adam Augustyn. Extinction, in biology, is the dying out or extermination of a species. It occurs when species are diminished because of environmental forces (natural or human-made) or because of evolutionary changes in their members.

   Extinction | Definition & Examples | Britannica

   www.britannica.com/science/extinction-biology

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   What causes extinction of a species?

   • Extinction occurs when species are diminished because of environmental forces (habitat fragmentation, global change, natural disaster, overexploitation of species for human use) or because of evolutionary changes in their members (genetic inbreeding, poor reproduction, decline in population numbers).

   Extinction | Definition & Examples | Britannica

   www.britannica.com/science/extinction-biology

   See all results for this question

   What is an extinction event?

   • An extinction event is when many species are driven to extinction by a particular species, natural disaster, or other phenomenon. While these mass extinctions sometimes wipe out a large majority of life, extinction itself is a continual part of evolution. Extinction happens on some scale all the time, as organisms adapt and outcompete others.

   Extinction: Definition, Examples and Causes | Biology Dictionary

   biologydictionary.net/extinction/

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   What is an example of extinction?

   • One example was the near extinction of the American bison, which was nearly wiped out by mass hunts sanctioned by the United States government, to force the removal of Native Americans, many of whom relied on the bison for food.

   Extinction - Wikipedia

   en.wikipedia.org/wiki/Extinction

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3. www.britannica.com › science › extinction-biologyExtinction | Definition & Examples | Britannica

   www.britannica.com › science › extinction-biology

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   Jun 1, 2024 · Extinction is the dying out or extermination of a species due to environmental or evolutionary factors. Learn about the different types of extinction, the causes of human-induced extinction, and the current extinction crisis from Britannica's experts.

4. www.nationalgeographic.org › encyclopedia › extinctionExtinction - National Geographic Society

   www.nationalgeographic.org › encyclopedia › extinction

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   Oct 19, 2023 · Extinction is the dying out of a species. Extinction plays an important role in the evolution of life because it opens up opportunities for new species to emerge.

5. Videos

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     byjus.com

     What Is Extinction? - Causes And Examples

     Feb 27, 2017

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     bbc.co.uk

     What is extinction? - KS2 - The Regenerators - BBC Bitesize

     Dec 7, 2021

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     youtube.com

     Extinction of Species | Evolution | Biology | FuseSchool

     Mar 27, 2017

     210K Views

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6. www.merriam-webster.com › dictionary › extinctionExtinction Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › extinction

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   Learn the meaning of extinction as the act of making extinct or causing to be extinguished, the condition or fact of being extinct, or the process of eliminating a conditioned response. See synonyms, examples, word history, and related phrases of extinction.

7. en.wikipedia.org › wiki › ExtinctionExtinction - Wikipedia

   en.wikipedia.org › wiki › Extinction

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   Extinction is the termination of a taxon by the death of its last member. A taxon may become functionally extinct before the death of its last member if it loses the capacity to reproduce and recover. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively.

8. dictionary.cambridge.org › english › extinctionEXTINCTION | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › english › extinction

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   Extinction is a situation in which something no longer exists, such as a species, a culture, or a way of life. Learn more about the meaning, usage, and examples of extinction from Cambridge Dictionary.

9. www.dictionary.com › browse › extinctionEXTINCTION Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › extinction

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   noun. the act of extinguishing. the fact or condition of being extinguished or extinct. suppression; abolition; annihilation: the extinction of an army. Biology. the act or process of becoming extinct; a coming to an end or dying out: the extinction of a species.

10. biologydictionary.net › extinctionExtinction: Definition, Examples and Causes | Biology Dictionary

    biologydictionary.net › extinction

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    Jul 12, 2018 · Extinction is when a species has no living individuals and no longer contributes to evolution. Learn about the different types, causes and examples of extinction, from the thylacine to the Megalodon.