• noun an atom, molecule, or group providing a pair of electrons in order to form a chemical bond
  • A species, such as an atom, molecule, or ion, which donates one or more electrons to another species. The accepting species is called acceptor (2). Also called electron donor.
  • An electron-donating impurity which is introduced into a crystalline semiconductor. The donating of electrons makes for an n-type semiconductor. Also called donor impurity, or donor material.

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