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Electron   Listen
noun
Electron  n.  
1.
Amber; also, the alloy of gold and silver, called electrum. (archaic)
2.
(Physics & Chem.) One of the fundamental subatomic particles, having a negative charge and about one thousandth the mass of a hydrogen atom. The electron carries (or is) a natural unit of negative electricity, equal to 3.4 x 10^(-10) electrostatic units, and is classed by physicists as a lepton. Its mass is practically constant at the lesser speeds, but increases due to relativistic effects as the velocity approaches that of light. Electrons are all of one kind, so far as is known. Thus far, no structure has been detected within an electron, and it is probably one of the ultimate composite constituents of all matter. An atom or group of atoms from which an electron has been detached has a positive charge and is called a cation. Electrons are projected from the cathode of vacuum tubes (including television picture tubes) as cathode rays and from radioactive substances as the beta rays. Previously also referred to as corpuscle, an obsolete term. The motion of electrons through metallic conductors is observed as an electric current. A particle identical to the electron in mass and most other respects, but having a positive instead of a negative charge, is called a positron, or antielectron





Collaborative International Dictionary of English 0.48


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"Electron" Quotes from Famous Books



... and he felt cold. He shivered. Hell or heaven weren't like this, either. It was like something out of some picture—something about Cagliostro, the ancient mystic. But he was sure the language he somehow spoke wasn't an ancient one. It had words for electron, penicillin and calculus, for he found ...
— The Sky Is Falling • Lester del Rey
... light, a ray of crimson flame and another of deeply violet radiance, beat straight down from a complicated array of enormous, oddly shaped electron tubes, of mirrors and lenses and prisms, of coils and whirling disks, which reached almost to the roof. Upright, a yard in diameter and almost a yard apart, the strange columns of light were sharp-edged as two transparent ...
— The Pygmy Planet • John Stewart Williamson
... complex energy system, in which electromagnetism is but a small part. Each energy-segment is represented by a different facet of each particle, and the arrangement of the individual particles to each other determines what super-particle they will form, such as an electron. Duvall ...
— The Untouchable • Stephen A. Kallis


Words linked to "Electron" :   electron radiation, electron tube, electron accelerator, electron gun, electron microscopic, electron volt, delta ray, electron paramagnetic resonance, electron optics, electron beam, photoelectron, electron orbit, electron microscope, electron multiplier, negatron, electron spin resonance, electron microscopy, lepton, valence electron, electron shell


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