| Pronunciation: | | i'lektrân
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electrovalent bond, electro-vital, electro-vitalism
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 WordNet Dictionary |
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| | Definition: | | [n] an elementary particle with negative charge |
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| | Synonyms: | | negatron |
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| | See Also: | | delta ray, free electron, lepton, photoelectron, valence electron |
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| Webster's 1913 Dictionary |
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| | Definition: | |
\E*lec"tron\, n. [NL., fr. Gr. 'h`lektron. See
{Electric}.]
Amber; also, the alloy of gold and silver, called {electrum}.
\E*lec"tron\, [NL., fr. Gr. ?. See {Electric}.]
(Physics & Chem.)
One of those particles, having about one thousandth the mass
of a hydrogen atom, which are projected from the cathode of a
vacuum tube as the cathode rays and from radioactive
substances as the beta rays; -- called also corpuscle. The
electron carries (or is) a natural unit of negative
electricity, equal to 3.4 x 10^{-10} electrostatic units. It
has been detected only when in rapid motion; its mass, which
is electromagnetic, is practically constant at the lesser
speeds, but increases as the velocity approaches that of
light. Electrons are all of one kind, so far as known, and
probably are the ultimate constituents of all atoms. An atom
from which an electron has been detached has a positive
charge and is called a coelectron.
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| Computing Dictionary |
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| | Definition: | | A sub-atomic particle with a negative quantised charge. A flow of electrical current consists of the unidirectional (on average) movement of many electrons. The more mobile electrons are in a given material, the greater it electrical conductance (or equivalently, the lower its resistance). |
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| | See Also: | | electronics |
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| Biology Dictionary |
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| | Definition: | | A stable atomic particle that has a negative charge; the flow of electrons through a substance constitutes electricity. |
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| Thesaurus Terms |
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| | Related Terms: | | alpha particle, antibaryon, antilepton, antimeson, atom, atomic nucleus, atomic particle, baryon, beta particle, cathode particle, electron affinity, electron cloud, electron pair, electron shells, electron spin, electron transfer, electron-positron pair, elementary particle, energy level, excited state, extranuclear electrons, ground state, ion, Kern, lepton, lone pair, meson, molecule, monad, negatron, neutron, NMR, nuclear force, nuclear magnetic resonance, nuclear particle, nuclear resonance, nucleon, nucleosynthesis, nucleus, octet, orbital electron, photoelectron, photon, proton, quark, recoil electron, secondary electron, shared pair, strangeness, strong interaction, subvalent electrons, surface-bound electron, thermion, triton, valence electron, valence electrons, valence shell, wandering electron |
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