noun Etymology: International Scientific Vocabulary chalk- bronze, ore (from Greek chalkos) + -gen; from the occurrence of oxygen and sulfur in many ores Date: circa 1961 any of the elements oxygen, sulfur, selenium, and tellurium
CHALCOGEN
Meaning of CHALCOGEN in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012