Light water or Lightwater may refer to:

Science edit

Other uses edit

See also edit

  • Semiheavy water, a form of water in which one of the protium atoms in light water is replaced with deuterium atoms
  • Heavy water, a form of water that contains a larger than usual amount of deuterium molecules
  • Super-heavy water, a form of water in which both protium atoms in light water are replaced with tritium atoms