| Subject | English | German |
| chem. | half element | Halbzelle (Einzelelektrode, single-electrode system) |
| chem. | half element | galvanisches Halbelement (single-electrode system) |
| chem. | half element | Halbelement (galvanisches, single-electrode system) |
| tech. | half-period element | Halbperiodenelement |
| commun., IT | half-wave element | Halbwellenelement |