extinction (redirected from Extinctions)

ex·tinc·tion  (k-stngkshn)

n.

1.

a. The act of extinguishing.

b. The condition of being extinguished.

2. The fact of being extinct or the process of becoming extinct: "The most effective agent in the extinction of species is the pressure of other species" Alfred R. Wallace.

3. Psychology A reduction or a loss in the strength or rate of a conditioned response when the unconditioned stimulus or reinforcement is withheld.

4. Physiology A gradual decrease in the excitability of a nerve to a previously adequate stimulus, usually resulting in total loss of excitability.

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extinction

Noun

1. the dying out of a plant or animal species

2. the end of a particular way of life or type of activity

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extinction  (k-stngkshn)

1. The fact of being extinct or the process of becoming extinct. See more at background extinctionmass extinction

2. A progressive decrease in the strength of a conditioned response, often resulting in its elimination, because of withdrawal of a specific stimulus.

Thesaurus

Noun	1.	extinction - no longer active; extinguished; "the extinction of the volcano" inaction, inactiveness, inactivity - the state of being inactive
	2.	extinction - no longer in existence; "the extinction of a species" defunctness death - the absence of life or state of being dead; "he seemed more content in death than he had ever been in life"
	3.	extinction - the reduction of the intensity of radiation as a consequence of absorption and radiation absorption - (physics) the process in which incident radiated energy is retained without reflection or transmission on passing through a medium; "the absorption of photons by atoms or molecules" natural action, natural process, action, activity - a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity" scattering - the physical process in which particles are deflected haphazardly as a result of collisions
	4.	extinction - complete annihilation; "they think a meteor cause the extinction of the dinosaurs" extermination annihilation, disintegration - total destruction; "bomb tests resulted in the annihilation of the atoll"
	5.	extinction - a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus experimental extinction conditioning - a learning process in which an organism's behavior becomes dependent on the occurrence of a stimulus in its environment
	6.	extinction - the act of extinguishing; causing to stop burning; "the extinction of the lights" extinguishing, quenching ending, termination, conclusion - the act of ending something; "the termination of the agreement"

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extinction

noun dying out, death, destruction, abolition, oblivion, extermination, annihilation, eradication, obliteration, excision, extirpation

Translations

extinction [ɪkˈstɪŋkʃən] n → extinción f

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extinction [ɪkˈstɪŋkʃən] extinct n → extinction f

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extinction [ɪksˈtɪŋkʃən] extinct n → Aussterben nt

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extinction [ɪkˈstɪŋkʃən] n → estinzione f