The difference between Heavy water and Light water

When used as nouns, heavy water means water containing deuterium instead of normal hydrogen (symbol d2o), whereas light water means water in its standard form of h2o, containing two protium hydrogen atoms, as opposed to heavy water.


check bellow for the other definitions of Heavy water and Light water

  1. Heavy water as a noun (chemistry):

    Water containing deuterium instead of normal hydrogen (symbol D2O); used as a moderator in nuclear reactors.

  1. Light water as a noun (chemistry):

    Water in its standard form of H2O, containing two protium hydrogen atoms, as opposed to heavy water.

  2. Light water as a noun:

    Foam formed by water and a fluorocarbon surfactant, used in firefighting because it floats on flammable liquids lighter than water.