- hydrogeologie
- hydroglossa
- hydrográd
- hydrograf
- hydrografie
- hydrogram
- hydrochorie
- hydrokardie
- hydrokéla
- hydrokortizon, hydrokortison
- hydrokrém
- hydroláza, hydrolasa
- hydrologie
- hydrolýza, hydrolysa
- hydroma (hygroma)
- hydrománie
- hydromantie
- hydromechanika
- hydromeningokéla
- hydrometalurgie
- hydrometeor
- hydrometeorologie
- hydrometra
- hydrometrický
- hydrometrie