[1] : WordNet (r) 2.0

atomic number 90
     n : a soft silvery-white tetravalent radioactive metallic
         element; isotope 232 is used as a power source in nuclear
         reactors; occurs in thorite and in monazite sands syn: thorium,
          th
see also:
thorium th 

Atomic Number >> A Words
Atomic Number, definition of term: Atomic Number
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Atomic >> A Words
Atomic, definition of term: Atomic
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Atomic Weight >> A Words
Atomic Weight, definition of term: Atomic Weight
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Atomic Theory >> A Words
Atomic Theory, definition of term: Atomic Theory
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Atomic Mass >> A Words
Atomic Mass, definition of term: Atomic Mass
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Atomic Volume >> A Words
Atomic Volume, definition of term: Atomic Volume
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Atomic Energy >> A Words
Atomic Energy, definition of term: Atomic Energy
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Atomic Clock >> A Words
Atomic Clock, definition of term: Atomic Clock
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Atomic Bomb >> A Words
Atomic Bomb, definition of term: Atomic Bomb
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Mixed Number >> M Words
Mixed Number, definition of term: Mixed Number
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