| Hyposphagma | hyposphagma |
| Hyphäma | hyphaema hyphema |
| Hypotheka | hypotheca |
| hypovoläm | hypovolemic |
| Hypophyse | hypophysis pituitary gland |
| Hypoplasie | hypoplasia |
| Hypostase | hypostase |
| Hydrosphäre | hydrosphere |
| Gynophagie | vorarephilia |
| Xylophage | xylophage |
| Hyperraum | hyperspace |
| Hypogamie | hypogamy |
| Hypotaxis | hypotaxis |
| Hypallage | hypallage |
| Hyperplasie | hyperplasia |
| Hyperschall | supersonic hypersonic |
| Hyponym | hyponym |
| Hypopyon | hypopyon |
| Hypotaxe | hypotaxis |
| Hypothalamus | hypothalamus |