Definition of Extinction

1. Noun. No longer active; extinguished. "The extinction of the volcano"

Generic synonyms: Inaction, Inactiveness, Inactivity
Attributes: Extinct

2. Noun. No longer in existence. "The extinction of a species"
Exact synonyms: Defunctness
Generic synonyms: Death
Derivative terms: Defunct, Defunct

3. Noun. The reduction of the intensity of radiation as a consequence of absorption and radiation.

4. Noun. Complete annihilation. "They think a meteor cause the extinction of the dinosaurs"
Exact synonyms: Extermination
Generic synonyms: Annihilation, Disintegration
Derivative terms: Extinguish

5. Noun. A conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus.
Exact synonyms: Experimental Extinction
Generic synonyms: Conditioning

6. Noun. The act of extinguishing; causing to stop burning. "The extinction of the lights"
Exact synonyms: Extinguishing, Quenching
Generic synonyms: Conclusion, Ending, Termination
Derivative terms: Extinguish, Extinguish, Extinguish, Quench

Definition of Extinction

1. n. The act of extinguishing or making extinct; a putting an end to; the act of putting out or destroying light, fire, life, activity, influence, etc.

Definition of Extinction

1. Noun. The action of making or becoming extinct; annihilation. ¹

2. Noun. (astronomy) The absorption or scattering of electromagnetic radiation emitted by astronomical objects by intervening dust and gas before it reaches the observer. ¹

¹ Source: wiktionary.com

Definition of Extinction

1. [n -S]

Medical Definition of Extinction

1. 1. The death of an entire species. 2. The procedure of presenting the conditioned stimulus without reinforcement to an organism previously conditioned. It refers also to the diminution of a conditioned response resulting from this procedure. (27 Jun 1999)

Lexicographical Neighbors of Extinction

extilled
extilling
extills
extimulate
extimulated
extimulates
extimulating
extimulation
extinct
extinct language
extinct languages
extinct volcano
extinct volcanoes
extincted
extincting
extinction
extinction angle
extinction coefficient
extinction factor
extinction oblique
extinction parallel
extinction symmetrical
extinctionism
extinctionist
extinctionists
extinctions
extinctive
extincts
extine
extines

Literary usage of Extinction

Below you will find example usage of this term as found in modern and/or classical literature:

1. Chemical Abstracts by American Chemical Society (1916)
"166°, extinction, 18°; o-nitrobenzo-2 ... almost colorless, felted hairs from ale., rapidly changing into pale yellow plates with straight extinction, m. ..."

2. Principles of General Physiology by William Maddock Bayliss (1920)
"Bunsen and Roscoe (1855-1859) introduced the extinction coefficient for this purpose. Their definition of it will be found on p. ..."

3. The Journal of Heredity by American Genetic Association (1914)
"Extinction OF FAMILY NAMES Algebraical Computation Shows That if World Lasted an Infinite Length of Time, All Inhabitants Would Have Same ..."

4. The Institutes: A Text-book of the History and System of Roman Private Law by Rudolf Sohm (1901)
"The Extinction of Obligations. An obligation may be extinguished either ipso ... In the former case, moreover, the ground of extinction cannot itself be ..."

5. The Origin of Species by Means of Natural Selection, Or, The Preservation of by Charles Darwin (1882)
"... intercrossing, isolation, number of individuals—Slow action— Extinction caused by Natural Selection—Divergence of Character, related to the diversity of ..."

6. The Astrophysical Journal by American Astronomical Society, University of Chicago (1899)
"Indeed, if we share with Schaeberle the view — and one meets with this repeatedly from other sides — that Laplace's theory of extinction has also ..."

7. International Law: A Treatise by Lassa Oppenheim (1920)
"All treaties concluded between two State One of the become void through the extinction of one of the con- tracting parties, provided that they do not ..."

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