Definition of deuteron in English:



  • The nucleus of a deuterium atom, consisting of a proton and a neutron.

    • ‘In the second step, a deuteron combines with a proton to form the nucleus of helium - 3, which contains two protons and one neutron.’
    • ‘If the laser frequencies are high enough, the deuteron effectively feels the proton's force in all directions, and the repulsion cancels itself.’
    • ‘Tritium was discovered by physicists Ernest Rutherford, M.L. Oliphant, and Paul Harteck, in 1934, when they bombarded deuterium (a hydrogen isotope with mass number 2) with high-energy deuterons (nuclei of deuterium atoms).’
    • ‘In this energy range, there is no reason, in principle, to have a different scattering behavior for protons and deuterons.’
    • ‘The wave functions of both the deuteron and the alpha particle are invariant under the interchange of up and down quarks but recall that the pion wave function is not.’


1930s: from Greek deuteros ‘second’, on the pattern of proton.