| Subject | English | German |
| gen. | button cell | Knopfzelle |
| chem. | button cell | Knopfzelle (button battery) |
| environ., energ.ind. | button cell battery | Knopfzelle |
| gen. | button cell connector | Knopfzellenhalter |
| environ. | button-cell battery | Knopfzelle |
| environ. | button-cell battery A tiny, circular battery made for a watch or for other microelectric applications | Knopfzelle |