单词 chalcogen 释义 chalcogen, n. Chem.Brit. |kalkd()n|, U.S. |klkd()n|Forms: 19– chalcogen, 19– chalkogen[rare][‹ chalco- comb. form + -gen comb. form, after halogen n. Compare earlier chalcogenide n.]Any of the elements in group 16 (group VIa) of th...