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dubnium British & World English

The chemical element of atomic number 105, a very unstable element made by high-energy atomic collisions

Db in dubnium British & World English

The chemical element of atomic number 105, a very unstable element made by high-energy atomic collisions

dubnium in hahnium British & World English

The name formerly proposed by the American Chemical Society for the chemical element of atomic number 105 (dubnium), and by IUPAC for element 108 (hassium)

dubnium in joliotium British & World English

The name proposed by IUPAC for the chemical element of atomic number 105, now called dubnium