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electron
noun , physics a particle, present in all atoms, which has a negative electric charge and is responsible for carrying electricity in solids.
[19c]
noun , physics a particle, present in all atoms, which has a negative electric charge and is responsible for carrying electricity in solids.
[19c]
electron gun
noun the assembly of electrodes in a cathode ray tube which produces the beam of electrons.
[1930s]
noun the assembly of electrodes in a cathode ray tube which produces the beam of electrons.
[1930s]
electron microscope
noun a microscope which operates using a beam of electrons rather than a beam of light, and is capable of very high magnification.
noun a microscope which operates using a beam of electrons rather than a beam of light, and is capable of very high magnification.
electron probe
noun an X-ray device that bombards a specimen under examination with a very narrow beam of electrons, allowing non-destructive analysis.
noun an X-ray device that bombards a specimen under examination with a very narrow beam of electrons, allowing non-destructive analysis.
electron tube
noun an electronic device in which the electron conduction is in a vacuum or gas inside a gas-tight enclosure, eg a thermionic valve.
noun an electronic device in which the electron conduction is in a vacuum or gas inside a gas-tight enclosure, eg a thermionic valve.
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