Search results
- DictionaryEx·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"
- 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"
Jun 1, 2024 · 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. Learn more about mass extinctions and modern extinctions.
The meaning of EXTINCTION is the act of making extinct or causing to be extinguished. How to use extinction in a sentence.
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.
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.
a situation in which something no longer exists: extinction of The extinction of the dinosaurs occurred millions of years ago. in danger of extinction Many species of plants and animals are in danger of extinction (= being destroyed so that they no longer exist).
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. Psychology. the reduction or loss of a conditioned response as a result of the absence or withdrawal of reinforcement.
a situation in which something no longer exists: extinction of The extinction of the dinosaurs occurred millions of years ago. in danger of extinction Many species of plants and animals are in danger of extinction (= being destroyed so that they no longer exist).
