| Hydrodynamik | hydrodynamics |
| Aerodynamik | aerodynamics |
| Astrodynamik | astrodynamics |
| Hämodynamik | hemodynamics |
| Hydronymie | hydronymy |
| Thermodynamik | thermodynamics |
| Hydrochemie | hydrochemistry |
| Hydrogenase | hydrogenase |
| Hydronym | hydronym |
| Elektrodynamik | electrodynamics |
| Eigendynamik | bootstrap |
| Dynamik | dynamics |
| Hydroenergie | hydropower |
| Hydrogen | hydrogen |
| Hydrographie | hydrography |
| Hydrologin | hydrologist |
| Hydrosphäre | hydrosphere |
| Hydroxyl | hydroxyl |
| Hydraulik | hydraulics hydraulic system |
| Hydrochorie | hydrochory |