Definition of chalcogen in English:

chalcogen

(also chalkogen)

noun

Chemistry
  • Any of the elements in group 16 (group VIa) of the periodic table, comprising oxygen, sulphur, selenium, tellurium, and polonium.

Origin

1940s. From chalco- + -gen, after halogen. Compare earlier chalcogenide.

Pronunciation

chalcogen

/ˈkalkədʒ(ə)n/