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Extinction   /ɪkstˈɪŋkʃən/  /ɪkstˈɪŋʃən/   Listen
Extinction

noun
1.
No longer active; extinguished.
2.
No longer in existence.  Synonym: defunctness.
3.
The reduction of the intensity of radiation as a consequence of absorption and radiation.
4.
Complete annihilation.  Synonym: extermination.
5.
A conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus.  Synonym: experimental extinction.
6.
The act of extinguishing; causing to stop burning.  Synonyms: extinguishing, quenching.



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"Extinction" Quotes from Famous Books



... mortifications; and it is history that when, in 1731, the last duke of the Farnese family died, leaving a widow, "Frugoni predicted and maintained in twenty-five sonnets that she would yet give an heir to the duke; but in spite of the twenty-five sonnets the affair turned out otherwise, and the extinction of the house of ...
— Modern Italian Poets • W. D. Howells

... delegates to Washington, and an international conference was held during the months of October and November last, wherein it was unanimously agreed that under the existing regulations this species of useful animals was threatened with extinction, and that an international agreement of all the interested powers was necessary for their ...
— Complete State of the Union Addresses from 1790 to the Present • Various

... the powers of a consummate master. A fastidious observer might indeed object to the bold, muscular strength of the old man—as exhibited in his legs and arms—and as indicative of the maturity, rather than of the approaching extinction, of life ... but what sculptor, in the representation of such subjects, can resist the temptation of displaying the biceps and gastrocnemian muscles? The countenances are all exquisite: all full ...
— A Bibliographical, Antiquarian and Picturesque Tour in France and Germany, Volume Three • Thomas Frognall Dibdin

... that the wonders here recorded could be possibilities of everyday life. But, if so, as Mr. Weller, Senior, observed, a propos of "there being a Providence in it," "O' course there is, SAMMY; or what 'ud become o' the undertakers?" And as to cremation—well, such an utter corporeal extinction would be the only way of putting an end to the terrestrial existence of Phra the Phoenician, who, however, "might rise," as Mrs. Malaprop would say, "like a Phoenician ...
— Punch, Or The London Charivari, Vol. 100., Jan. 24, 1891. • Various

... not to any cultivation of the mind. Their health Buffered in a nomadic life from the ills of the country, the dangers of the climate, and the children by whom a few were accompanied, showed a degeneracy of blood which threatened the race with extinction. ...
— Veranilda • George Gissing


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