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1. Dictionary

   extinction

   /ɪkˈstɪŋ(k)ʃn/

   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 to zero in the intensity of light or other radiation as it passes through a medium, due to absorption, reflection, or 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

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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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   What is extinction noun?

   • Definition of extinction noun from the Oxford Advanced Learner's Dictionary a situation in which a plant, an animal, a way of life, etc. stops existing The island's way of life is doomed to extinction. The mountain gorilla is on the verge of extinction. We know of several mass extinctions in the earth's history.

   extinction noun - Definition, pictures, pronunciation and usage notes

   www.oxfordlearnersdictionaries.com/definition/english/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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   Jul 1, 2024 · Extinction is the dying out or extermination of a species, which can be caused by environmental or evolutionary factors. Learn about the different types of extinction, the current extinction crisis, and the mass extinctions in Earth's history.

4. 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, condition, or process of making or being extinct, or of eliminating a conditioned response. See synonyms, examples, word history, and related phrases of extinction.

5. Videos

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     bbc.co.uk

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

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     Extinction of Species | Evolution | Biology | FuseSchool

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     bbc.co.uk

     Extinction: The Facts in 6 minutes

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6. 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.

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

   www.nationalgeographic.org › encyclopedia › extinction

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   Oct 19, 2023 · Extinction is the complete disappearance of a species from Earth. Learn about the causes, effects, and examples of mass extinctions in the history of life on Earth, and the current threat of human-induced extinction.

8. 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.

9. dictionary.cambridge.org › english › extinctionEXTINCTION | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › english › extinction

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   Extinction is a situation in which something no longer exists, such as a species of plant or animal. Learn more about the causes, effects and history of extinction with examples and collocations from Cambridge Dictionary.

10. www.oxfordlearnersdictionaries.com › definitionextinction noun - Definition, pictures, pronunciation and ...

    www.oxfordlearnersdictionaries.com › definition

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    Extinction is a situation in which a plant, an animal, a way of life, etc. stops existing. Learn how to use the word extinction in different contexts, with pictures, pronunciation and usage notes.