Dubnium (noun) Definition, Meaning & Examples

noun Chemistry, Physics.
  1. a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Db; atomic number: 105.
noun
  1. a synthetic transactinide element produced in minute quantities by bombarding plutonium with high-energy neon ions. Symbol: Du; atomic no 105
Db
    Dubnium (noun) Definition, Meaning & Examples

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