Definitions of electron

  1. an elementary particle with negative charge Scrapingweb Dictionary DB
  2. Amber; also, the alloy of gold and silver, called electrum. Webster Dictionary DB
  3. 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. Webster Dictionary DB
  4. Stable elementary particles having the smallest known negative charge, present in all elements; also called negatrons. Positively charged electrons are called positrons. The numbers, energies and arrangement of electrons around atomic nuclei determine the chemical identities of elements. Beams of electrons are called CATHODE RAYS or BETA RAYS, the latter being a high-energy biproduct of nuclear decay. Medical Dictionary DB
  5. One of the components of atoms; the smallest known component of matter; an electrical unit. The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919.
  6. One of the negatively electrified corpuscles or particles of ether adherent to, or contained in, and constituting in their aggregation the atom; in size they are estimated to be 1/2000 that of the hydrogen atom. A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
  7. The electric charge of an atom; believed to exist as a separate entity. The Concise Standard Dictionary of the English Language. By James Champlin Fernald. Published 1919.
  8. A sub-atomic particle with a negative quantisedcharge. A flow of electrical current consists of theunidirectional (on average) movement of many electrons. Themore mobile electrons are in a given material, the greater itelectrical conductance (or equivalently, the lower itsresistance). foldoc_fs
  9. Alloy of silver& gold in use among the ancients; (Mineral., -um) native argentiferous gold; (-on, pl. -ons) atom of negative electricity, electric charge of an atom. [Greek] Concise Oxford Dictionary
  10. Amber. The name given to the ultimate electrical particles of which all matter is supposed to be composed. They are supposed to be negatively charged. The hydrogen atom is estimated to contain 770 electron's. [Gr.] Appleton's medical dictionary.

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