| Subject | English | German |
| anal.chem. | outer zone | äußerer Kegel (of a flame) |
| anal.chem. | outer zone | sekundäre Reaktionszone (of a flame) |
| tech. | outer zone | Randzone |
| gen. | outer zone | Außenbereich |
| anal.chem. | outer zone | Außenkegel (of a flame) |
| construct. | outer zone of settlement | Weichbild der Siedlung |