Heavy water

Heavy water
  Water containing a significantly greater proportion of heavy hydrogen (deuterium) atoms to ordinary hydrogen atoms than is found in ordinary (light) water. Heavy water is used as a moderator in some reactors because it slows neutrons effectively and also has a low cross section for absorption of neutrons.
  U.S. Dept. of Energy, Energy Information Administration's Energy Glossary
  ***
  A type of hydrogen atom that may be used as fuel for fusion power plants. Also called DEUTERIUM, it is found in abundance in the seas.
  California Energy Comission. Dictionary of Energy Terms

Energy terms . 2014.

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  • heavy water — water in which hydrogen atoms have been replaced by deuterium, used chiefly as a coolant in nuclear reactors. Also called deuterium oxide. [1930 35] * * * or deuterium oxide Water composed of two atoms of deuterium (D; a heavy isotope of… …   Universalium

  • heavy water — n. water composed of heavy isotopes of hydrogen or oxygen, or of both; esp., deuterium oxide, D2O, which is water composed of ordinary oxygen and deuterium …   English World dictionary

  • heavy water — n 1) the compound D2O composed of deuterium and oxygen called also deuterium oxide 2) water having a higher than usual proportion of deuterium among its hydrogen atoms * * * a compound analogous to water but containing deuterium, the mass two… …   Medical dictionary

  • Heavy water — См. Тяжелая вода Термины атомной энергетики. Концерн Росэнергоатом, 2010 …   Термины атомной энергетики

  • Heavy water — Not to be confused with hard water or tritiated water. Deuterium oxide IUPAC name …   Wikipedia

  • heavy water — noun water containing a substantial proportion of deuterium atoms, used in nuclear reactors • Syn: ↑deuterium oxide • Hypernyms: ↑moderator * * * ˈheavy water 7 [heavy water] noun …   Useful english dictionary

  • heavy water — sunkusis vanduo statusas T sritis chemija formulė D₂O atitikmenys: angl. heavy water rus. тяжелая вода …   Chemijos terminų aiškinamasis žodynas

  • heavy water — sunkusis vanduo statusas T sritis fizika atitikmenys: angl. heavy water vok. schweres Wasser, n; Schwerwasser, n rus. тяжёлая вода, f pranc. eau lourde, f …   Fizikos terminų žodynas

  • heavy water — sunkusis vanduo statusas T sritis apsauga nuo naikinimo priemonių apibrėžtis D₂o, vanduo, kuriame vietoje paprastų vandenilio atomų yra sunkieji vandenilio izotopai – deuterio atomai. Sunkiojo vandens tankis 1,104 g/cm³, lydymosi temperatūra… …   Apsaugos nuo naikinimo priemonių enciklopedinis žodynas

  • heavy water — sunkusis vanduo statusas T sritis ekologija ir aplinkotyra apibrėžtis Deuterio oksidas (D₂O) – bespalvis skystis, kuriame vietoje paprastų vandenilio atomų yra sunkieji vandenilio izotopai – deuterio atomai. Jame lėčiau vyksta cheminės reakcijos …   Ekologijos terminų aiškinamasis žodynas

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