chalcogen

American  

[kal-kuh-juhn, -jen] / ˈkæl kə dʒən, -ˌdʒɛn /

noun

1. Chemistry. any of the elements oxygen, sulfur, selenium, tellurium, and polonium, which form the VIa group in the periodic table.

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chalcogen British  

/ ˈkælkəˌdʒɛn /

noun

1. any of the elements oxygen, sulphur, selenium, tellurium, or polonium, of group 6A of the periodic table

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Etymology

Origin of chalcogen

First recorded in 1960–65; chalco- ( def. ) + -gen

Example Sentences

Kadlag, Y. & Becker, H. Highly siderophile and chalcogen element constraints on the origin of components of the Allende and Murchison meteorites.

From Nature

The trick, he says, was to source each ingredient from gases in which each molecule contained just one atom of the transition metal or chalcogen.

From Nature