First Known Use: circa 1961
Dictionary
chalcogen
noun chal·co·gen \ˈkal-kə-jən\
Definition of CHALCOGEN
: any of the elements oxygen, sulfur, selenium, and tellurium
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Origin of CHALCOGEN
International Scientific Vocabulary chalk- bronze, ore (from Greek chalkos) + -gen; from the occurrence of oxygen and sulfur in many ores
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