| thermophil | thermophile thermophilic |
| Theosophie | theosophy |
| homophil | homophile |
| xerophil | xerophilous |
| Theophilus | Theophilus |
| Thermochemie | thermochemistry |
| Thermographie | thermography |
| Thermosphäre | thermosphere |
| Thermostat | thermostat |
| Therapie | therapy |
| Thermik | thermal |
| Thermit | thermite |
| thermal | thermal |
| Tiermehl | animal meal |
| extremophil | extremophilic |
| oreophil | oreophilous |
| androphil | androphilous |
| chionophil | chionophilous |
| halophil | halophilic halophilous |
| hydrophil | hydrophilic |