| Isomerie | isomerism |
| Isometrie | isometry |
| Isomer | isomer |
| Mesomerie | resonance |
| Isobare | isobar |
| Isogamie | isogamy |
| Isotherme | isotherm |
| isomorph | isomorphic |
| Insomnie | insomnia |
| Iodometrie | iodometry |
| Römerin | Roman |
| Biometrie | biometrics |
| Geometrie | geometry |
| Myomere | myomere |
| Drogerie | drugstore druggist’s druggist’s shop |
| Esoterik | esotericism |
| Ivorerin | Ivorian |
| Progerie | progeria |
| Serie | series |
| Isobar | isobar |
| isobar | isobaric |