| Quantenfeldtheorie | quantum field theory |
| Quantentheorie | quantum theory |
| Ligandenfeldtheorie | ligand field theory |
| Quantenchemie | quantum chemistry |
| Kristallfeldtheorie | crystal field theory |
| Quantenlogik | quantum logic |
| Quantenkosmologie | quantum cosmology |
| Quantenmechanik | quantum mechanics |
| Quastenflosser | coelacanth cœlacanth |
| Knotentheorie | knot theory |
| Mengentheorie | set theory |
| Deszendenztheorie | descension theory evolutionary theory |
| Dramentheorie | dramatic theory |
| Graphentheorie | graph theory |
| Urknalltheorie | Big Bang Theory |
| Zahlentheorie | theory of numbers |
| Stangensellerie | celery |
| Quantentopf | quantum well |
| Quantencomputer | quantum computer |
| Quantenfluktuation | quantum fluctuation |