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heavy water

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

Water containing deuterium, a heavy isotope of hydrogen

Water in which all the hydrogen atoms have been replaced by deuterium

A molecule resembling H2O formed by a dueterium atom and 2 oxygen atoms

015% deuterium oxide; this can be enriched or purified by distillation, electrolysis, or chemical processing. Heavy water is used as a moderator in nuclear power plants, slowing down the fast neutrons so that they can react with the fuel in the reactor. Heavy water is also used in research as an isotopic tracer for chemical reactions and biochemical pathways. Water with tritium (T2O) rather than deuterium may also be called heavy water

Water containing significantly more than the natural proportion (1 in 6500) of heavy hydrogen (deuterium) atoms to ordinary hydrogen atoms (Hydrogen atoms have one proton, deuterium atoms have one proton and one neutron ) Heavy water is used as a moderator in some reactors because it slows down neutrons effectively and does not absorb them (unlike light, or normal, water) making it possible to fission natural uranium and sustain a chain reaction

water with a higher average molecular weight than ordinary water, water used for cooling the core of an atomic reactor

Any of several isotopic forms of water, especially deuterium oxide, that consists chiefly of molecules containing heavy hydrogen and is used as a moderator in certain nuclear reactors. or deuterium oxide Water composed of two atoms of deuterium (D; a heavy isotope of hydrogen) and one atom of oxygen (O), chemical formula D2O. Water from most natural sources contains about

Water containing an elevated concentration of molecules with deuterium ("heavy hydrogen") atoms

Fast current, large waves, usually associated with holes, boulders, and general turbulence See Big Water

a form of water occurring at a level of 1 part heavy water per 7000 in natural water; contains a variant (isotope) form of hydrogen having a larger mass than normal hydrogen; used to slow down the speed of neutrons during the fission process in CANDU reactors in order to increase the incidence of fission necessary to perpetuate the chain reaction

Heavy water or deuterium oxide (D20) is a natural form of water used to lower the energy of neutrons in a reactor It is heavier than normal water by about 10 per cent, and occurs in minute quantities (about one part heavy water per 7,000 parts water)

Water which contains heavy hydrogen (deuterium) instead of ordinary hydrogen It is widely used in reactors to slow down neutrons

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

water containing a substantial proportion of deuterium atoms, used in nuclear reactors

Water containing significantly more than the natural proportion (one in 6500) of heavy hydrogen (deuterium) atoms to ordinary hydrogen atoms Heavy water is used as a moderator in some reactors because it slows down neutrons effectively

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