| Ionisationsstab | ionization bar ionizing bar |
| Ionisation | ionization ionisation |
| Ionisationsröhre | ionisation tube ionization tube |
| Ionisationssensor | ionisation sensors |
| Ionisationseffekt | ionisation effect |
| Ionisationskammer | ionization chamber |
| Ionisationsleistung | ionization power |
| Operationssaal | operating room theatre operating theater operating theatre surgery theater |
| Animationsfilm | animated cartoon |
| Initiationsritus | initiation ceremony |
| Isolationist | isolationist |
| Isolationistin | isolationist |
| Oxidationszahl | oxidation number |
| instationär | transient |
| Ionisationstechnik | Ionisation technique ionization technique |
| Ionisator | ioniser ionizer |
| inflationär | inflationary |
| motivational | motivational |
| Infektiosität | infectiousness |
| Monstrosität | monstrosity |