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- Dictionaryextinction/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"
- 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"
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EXTINCTION definition: 1. a situation in which something no longer exists: 2. a situation in which something no longer…. Learn more.
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.
extinction: [noun] the act of making extinct or causing to be extinguished.
6 meanings: 1. the act of making extinct or the state of being extinct 2. the act of extinguishing or the state of being.... Click for more definitions.
Oct 19, 2023 · When a species disappears, biologists say that the species has become extinct. By making room for new species, extinction helps drive the evolution of life. Over long periods of time, the number of species becoming extinct can remain fairly constant, meaning that an average number of species go extinct each year, century, or millennium.
Jun 25, 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.
Extinction definition: the act of extinguishing. . See examples of EXTINCTION used in a sentence.
EXTINCT definition: 1. not now existing: 2. An extinct volcano is one that is not now active (= will not explode…. Learn more.
a situation in which a plant, an animal, a way of life, etc. stops existing. a tribe threatened with extinction/in danger of extinction; 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.
Britannica Dictionary definition of EXTINCTION. : the state or situation that results when something (such as a plant or animal species) has died out completely. [noncount] the extinction of all life in the region. Several bird species are threatened with extinction. = Several bird species are on the brink of extinction.
Extinction is when all members of a particular group die. Most often, we use it to discuss animal species. Many fear that the tiger is headed for extinction because of development and hunting.
Extinction refers to the dying out or extermination of a species. Extinction occurs when species are diminished because of environmental forces such as habitat fragmentation, climate change, natural disaster, overexploitation by humans, and pollution, or because of evolutionary changes in their members (genetic inbreeding, poor reproduction ...
extinction meaning, definition, what is extinction: when a particular type of animal or plan...: Learn more.
Extinct definition: no longer in existence; having ended or died out. See examples of EXTINCT used in a sentence.
extinction, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary
ex•tinc•tion. (ɪkˈstɪŋk ʃən) n. 1. the act of extinguishing. 2. the state of being extinguished or extinct. 3. the act or process of becoming extinct: the extinction of a species. 4. the reduction or loss of a conditioned response as a result of the absence or withdrawal of reinforcement.
May 29, 2019 · Extinction is a natural phenomenon: After all, more than 90 percent of all organisms that have ever lived on Earth aren’t alive today. But humans have made it worse, accelerating natural ...
EXTINCTION meaning: 1. a situation in which something no longer exists: 2. a situation in which something no longer…. Learn more.
4 meanings: 1. (of an animal or plant species) having no living representative; having died out 2. quenched or extinguished 3..... Click for more definitions.
Jul 12, 2018 · Extinction Definition. Extinction is a term applied to a known species, of which there are no known living individuals. Some species which have suffered extinction are known only from their fossilized remains. Others were at one point known to humans, but are gone now. Still others suffered directly at the hands of humans, driven to extinction.
A meteor strike on the Yucatan peninsula in Mexico led to the disappearance of dinosaurs millions of years ago. Most of the mass extinctions, such as KT extinction or Permian-Triassic extinction, were caused due to such events. Astronomers constantly keep an eye on comets or meteors that could lead to the end of human civilization.
extinct: 1 adj no longer in existence; lost or especially having died out leaving no living representatives “an extinct species of fish” “an extinct royal family” “ extinct laws and customs” Synonyms: nonextant nonexistent not having existence or being or actuality dead not surviving in active use Antonyms: extant still in existence; not ...
Jun 24, 2024 · For example, the extinction of keystone species—which earned that name because of their role in keeping entire ecosystems in balance—“can mean a collapse of entire habitats,” Lacerda says.
a situation in which a plant, an animal, a way of life, etc. stops existing a tribe threatened with extinction/in danger of extinction The mountain gorilla is on the verge of extinction. a campaign to save wild koalas from extinction Will technology in music drive creativity to extinction? A comet colliding with the earth may have caused the mass extinction of the dinosaurs.
Jun 25, 2024 · In a new article, a coalition of conservationists and researchers have shown how we can protect Earth's remaining biodiversity by conserving just a tiny percentage of the planet's surface.
1 day ago · This multiplicity of meanings and the arguments related to them is the reason why this article defines the noun ‘biodiversity’ from two distinct disciplinary viewpoints—lexicology and ecology and environmental studies—and explores its use in an activist text from the website of Extinction Rebellion.
Jun 25, 2024 · Conserving biodiversity hotspots which cover just 1.22% of the Earth’s terrestrial surface could stop extinctions in their tracks and protect the planet for fut
Jun 20, 2024 · Successful conservation efforts mean that the animal, native to Spain and Portugal, is now barely a vulnerable species, according to the latest version of the IUCN Red List. An Iberian lynx walks with a rabbit in its mouth after having captured it in the surroundings of the Doñana National Park, in Aznalcazar, Spain on Thursday, April 5, 2019.
1 day ago · PARIS — Thousands of left-leaning protesters gathered in Paris on Sunday night after the first round of a snap election that resulted in the far-right National Rally (RN) winning 33 percent of the vote, according to early estimates. There was a mixture of emotions in the crowd.
1 day ago · Sir Keir Starmer and Rishi Sunak are beginning a frantic final few days of campaigning before the polls open on Thursday, but one Tory minister tells Sky's Sophy Ridge the election is a foregone ...
