negatronn.

Brit.

/ˈnɛɡətrɒn/, U.S.

/ˈnɛɡəˌtrɑn/

Origin: Formed within English, by derivation. Etymons: negative adj., -tron suffix.

Etymology: < nega- (in negative adj.) + -tron suffix. With sense 2 compare slightly earlier negaton n.

1. Electronics. A valve with negative resistance, having an anode on one side of the cathode and a second anode and a control grid on the other side. Now historical.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > thermionic valve > [noun] > vacuum tube or thermionic valve

vacuum tube1859

trigger tube1894

audion1906

pliotron1915

diode1919

electron tube1919

negatron1919

pentode1919

power valve1919

tetrode1919

triode valve1919

magnetron1921

bright emitter1923

peanut valve1923

peanut1924

power tube1924

multiple valve1929

thyratron1929

heptode1932

hexode1933

pentagrid1933

acorn tube1934

octode1934

triode-pentode1936

triode-hexode1937

transitron1939

trochotron1947

steering diode1957

1919 J. Scott-Taggart Brit. Patent 166,260 The present invention relates to an electron discharge device, hereinafter to be termed a negatron, which is capable of being used as a negative resistance.

1964 J. Groszkowski Frequency of Self-oscillations iii. 70 The negatron belongs to the voltage-controlled negative resistors.

2. Physics. An ordinary negatively charged electron (as distinct from a positron). Cf. negaton n. Now disused.

ΘΚΠ

the world > matter > physics > atomic physics > particle physics > particle avoiding strong interaction > electron > [noun] > negatively charged

negaton1928

negatron1933

1933 Literary Digest 22 July 22/3 Dr. Anderson suggested also that the familiar negative electron be re-christened ‘negatron’, but it seems unlikely that this will be accepted.

1934 C. D. Anderson et al. in Physical Rev. 45 353/1 To remove the ambiguity in the definition of the term ‘electron’..the terms ‘negatron’ and ‘positron’ are here used.

1955 R. D. Evans Atomic Nucleus xviii. 576 Consider the collision of an incident negatron..with an atomic electron.

1961 G. R. Choppin Exper. Nucl. Chem. vii. 100 When the gamma energy is greater than 1·02 MeV, a certain probability exists for the creation of a negatron..and a positron.

1971 B. E. Stern & D. Lewis X-rays iii. 47 Triplet production can occur when the photon interacts with an electron and not with a nucleus. Three particles result, the original electron as well as the positron and negatron pair.

This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022).

单词	negatron
释义	negatronn. Brit. /ˈnɛɡətrɒn/, U.S. /ˈnɛɡəˌtrɑn/ Origin: Formed within English, by derivation. Etymons: negative adj., -tron suffix. Etymology: < nega- (in negative adj.) + -tron suffix. With sense 2 compare slightly earlier negaton n. 1. Electronics. A valve with negative resistance, having an anode on one side of the cathode and a second anode and a control grid on the other side. Now historical. ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > thermionic valve > [noun] > vacuum tube or thermionic valve vacuum tube1859 trigger tube1894 audion1906 pliotron1915 diode1919 electron tube1919 negatron1919 pentode1919 power valve1919 tetrode1919 triode valve1919 magnetron1921 bright emitter1923 peanut valve1923 peanut1924 power tube1924 multiple valve1929 thyratron1929 heptode1932 hexode1933 pentagrid1933 acorn tube1934 octode1934 triode-pentode1936 triode-hexode1937 transitron1939 trochotron1947 steering diode1957 1919 J. Scott-Taggart Brit. Patent 166,260 The present invention relates to an electron discharge device, hereinafter to be termed a negatron, which is capable of being used as a negative resistance. 1964 J. Groszkowski Frequency of Self-oscillations iii. 70 The negatron belongs to the voltage-controlled negative resistors. 2. Physics. An ordinary negatively charged electron (as distinct from a positron). Cf. negaton n. Now disused. ΘΚΠ the world > matter > physics > atomic physics > particle physics > particle avoiding strong interaction > electron > [noun] > negatively charged negaton1928 negatron1933 1933 Literary Digest 22 July 22/3 Dr. Anderson suggested also that the familiar negative electron be re-christened ‘negatron’, but it seems unlikely that this will be accepted. 1934 C. D. Anderson et al. in Physical Rev. 45 353/1 To remove the ambiguity in the definition of the term ‘electron’..the terms ‘negatron’ and ‘positron’ are here used. 1955 R. D. Evans Atomic Nucleus xviii. 576 Consider the collision of an incident negatron..with an atomic electron. 1961 G. R. Choppin Exper. Nucl. Chem. vii. 100 When the gamma energy is greater than 1·02 MeV, a certain probability exists for the creation of a negatron..and a positron. 1971 B. E. Stern & D. Lewis X-rays iii. 47 Triplet production can occur when the photon interacts with an electron and not with a nucleus. Three particles result, the original electron as well as the positron and negatron pair. This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022). < n.1919
随便看	θ189595 θ189596 θ189597 θ189599 θ1896 θ18960 θ189600 θ189601 θ189602 θ189603 θ189604 θ189605 θ189606 θ189607 θ189608 θ189609 θ18961 θ189610 θ189611 θ189612 θ189613 θ189614 θ189615 θ189616 θ189617