oxygen family element; chalcogen
Technical term in chemistry for elements in group 16 of the periodic table, including oxygen, sulfur, selenium, tellurium, and polonium.
The oxygen family elements include oxygen, sulfur, selenium, and others.
Compound of 酸素 (oxygen) + 族 (family, group) + 元素 (element), referring to the group of elements in the same column as oxygen in the periodic table.