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deuterium 音標拼音: [dut'iriəm] n. 重氫;氫的同位素 重氫;氫的同位素 deuterium n 1: an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen) [synonym: {deuterium}, {heavy hydrogen}] deuterium
Symbol: D Atomic Weight: 2 A {hydrogen} atom which has but one proton and {neutron}. Deuterium makes up about 0.015% of all natural hydrogen. Chemical properties are like that of normal {hydrogen}, though somewhat slower.
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