| Subject | English | Danish |
| med. | colloidal selenium | sélenium colloïdal |
| chem. | red selenium | selenrødt |
| chem. | selenium acid | selensyre |
| cultur. | selenium cell | selencelle |
| med. | selenium-deficient area | område med Se-mangel |
| chem. | selenium dioxide | selensyrlinganhydrid |
| chem. | selenium dioxide | selendioxid |
| chem. | selenium dioxide | SeO2 |
| chem. | selenium disulphide | selendisulfid |
| chem. | selenium oxychloride | selenoxychlorid |
| chem. | selenium oxychloride | selenylchlorid |
| chem. | selenium oxychloride | SeOCl2 |
| el. | selenium polarizer | selen polarisator |
| el. | selenium rectifier | selenensretter |
| el. | selenium surge suppressor | selen spændingspulsbegrænser |
| chem. | selenium tetrachloride | selentetrachlorid |
