| Hydroforming | hydroforming |
| Hydrologin | hydrologist |
| Terraforming | terraforming planetary engineering |
| herzförmig | heart-shaped |
| Hydrochemie | hydrochemistry |
| Hydrocortison | hydrocortisone |
| Hydroenergie | hydropower |
| Hydrochorie | hydrochory |
| Hydrokortison | hydrocortisone |
| Hydrologie | hydrology |
| Hydronymie | hydronymy |
| hakenförmig | unciform |
| Verformung | deformation |
| Y-förmig | Y-shaped |
| fadenförmig | filamentous filiform threadlike thready |
| nadelförmig | needlelike spicular |
| radförmig | rotiform wheel-like wheel-shaped |
| sternförmig | star-shaped stellate stelliform |
| Hydrochinon | hydroquinone |
| Hydrodynamik | hydrodynamics |