xenonn.

Brit.

/ˈziːnɒn/,

/ˈzɛnɒn/, U.S.

/ˈziˌnɑn/

Etymology: < Greek ξένον, neuter of ξένος strange.

Chemistry.

A heavy inert gaseous element present in minute quantity in the atmosphere, discovered by Sir William Ramsay in 1898. Symbol Xe or X. Also attributive and in other combinations.

ΘΚΠ

the world > matter > chemistry > elements and compounds > metals > noble gases > xenon > [noun]

xenon1898

Xe1900

the world > matter > chemistry > elements and compounds > metals > noble gases > xenon > [adjective]

xenon1938

1898 Ramsay & Travers in Rep. Brit. Assoc. Bristol 830 The last fractions of liquefied argon show the presence of three new gases. These are krypton..metargon..and a still heavier gas,..which we propose to name ‘xenon’.

1938 Ann. Reg. 1937 358 Laporte..showed that white light could be obtained from a xenon tube through which brief but very intense currents were passed.

1957 T. L. J. Bentley Man. Miniature Camera (ed. 5) v. 74 The practical uses of electronic flash sets are governed by the characteristics of the modern xenon-filled flash tube.

1959 New Scientist 1 Jan. 12/1 The main lighting was provided by a pulsed xenon compact source lamp, and its intensity was of the order of 50,000 foot candles.

1962 Newnes Conc. Encycl. Nucl. Energy 877/1 Xenon is of importance in nuclear technology because several radioactive isotopes of the element are found among the fission products. One of these, Xe¹³⁵,..gives rise to fission-product poisoning of the reactor.

1963 Listener 14 Mar. 459/2 A team of workers..showed that xenon and fluorine could readily be reacted together to produce xenon-tetrafluoride.

1971 Sci. Amer. Oct. 92/3 The compounds they studied were two chlorides of xenon, XeCl₂ and XeCl₄, which they produced indirectly by synthesizing analogous compounds where radioactive iodine 129 took the place of xenon... It will be recalled that xenon used to be called an inert, or ‘noble’, gas because it was thought to be chemically completely unreactive.

1971 Jrnl. Gen. Psychol. 84 95 Spectrally pure stimuli are being produced by passing the output of a xenon arc through narrow-band interference filters.

1976 Daily Times (Lagos) 8 July 17/1 Most film theatres in this country operating in 35mm have such poor and antiquated projection equipment that a good 16mm heavy duty projector equipped with a xenon lamp will certainly achieve better picture and sound quality.

This entry has not yet been fully updated (first published 1921; most recently modified version published online December 2021).

单词	xenon
释义	xenonn. Brit. /ˈziːnɒn/, /ˈzɛnɒn/, U.S. /ˈziˌnɑn/ Etymology: < Greek ξένον, neuter of ξένος strange. Chemistry. A heavy inert gaseous element present in minute quantity in the atmosphere, discovered by Sir William Ramsay in 1898. Symbol Xe or X. Also attributive and in other combinations. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > noble gases > xenon > [noun] xenon1898 Xe1900 the world > matter > chemistry > elements and compounds > metals > noble gases > xenon > [adjective] xenon1938 1898 Ramsay & Travers in Rep. Brit. Assoc. Bristol 830 The last fractions of liquefied argon show the presence of three new gases. These are krypton..metargon..and a still heavier gas,..which we propose to name ‘xenon’. 1938 Ann. Reg. 1937 358 Laporte..showed that white light could be obtained from a xenon tube through which brief but very intense currents were passed. 1957 T. L. J. Bentley Man. Miniature Camera (ed. 5) v. 74 The practical uses of electronic flash sets are governed by the characteristics of the modern xenon-filled flash tube. 1959 New Scientist 1 Jan. 12/1 The main lighting was provided by a pulsed xenon compact source lamp, and its intensity was of the order of 50,000 foot candles. 1962 Newnes Conc. Encycl. Nucl. Energy 877/1 Xenon is of importance in nuclear technology because several radioactive isotopes of the element are found among the fission products. One of these, Xe¹³⁵,..gives rise to fission-product poisoning of the reactor. 1963 Listener 14 Mar. 459/2 A team of workers..showed that xenon and fluorine could readily be reacted together to produce xenon-tetrafluoride. 1971 Sci. Amer. Oct. 92/3 The compounds they studied were two chlorides of xenon, XeCl₂ and XeCl₄, which they produced indirectly by synthesizing analogous compounds where radioactive iodine 129 took the place of xenon... It will be recalled that xenon used to be called an inert, or ‘noble’, gas because it was thought to be chemically completely unreactive. 1971 Jrnl. Gen. Psychol. 84 95 Spectrally pure stimuli are being produced by passing the output of a xenon arc through narrow-band interference filters. 1976 Daily Times (Lagos) 8 July 17/1 Most film theatres in this country operating in 35mm have such poor and antiquated projection equipment that a good 16mm heavy duty projector equipped with a xenon lamp will certainly achieve better picture and sound quality. This entry has not yet been fully updated (first published 1921; most recently modified version published online December 2021). < n.1898
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