| interezza | entirety |
| interfaccia | interface |
| interfaccia aria-mare | ocean-air interface |
| Interfaccia di gestione della scrivania | DMI |
| Interfaccia grafica | Graphical user interface |
| Interfaccia umano-macchina | Human-computer interaction |
| interfaccia utente | user interface |
| interface | interface |
| Interface Description Language | Interface description language |
| Interface design | User interface design |
| interferenza | disturbance |
| Interferenza linguistica | Language transfer |
| Interferenza luminosa | Light interference |
| Interferometri | Interferometers |
| Interferometri a commutazione di fase | Phase switching interferomete |
| Interferometri a intensità | Intensity interferometers |
| Interferometri a lunga base | Long baseline interferometers |
| Interferometri a lunghissima base | Very long baseline interferom |
| Interferometri di Fabry Perot | Fabry Perot interferometers |
| Interferometri di Michelson | Michelson interferometers |
| Interferometri di Perot Fabry | Perot Fabry interferometers |
| Interferometri ottici | Optical interferometers |
| Interferometri stellari | Stellar interferometers |
| Interferometria a chiazze | Speckle interferometry |
| Interferometria a lunga base | Long baseline interferometry |
| Interferometria a lunghissima base | Very long baseline interferom |
| Interferometria della luce | Light interferometry |
| Interferometria di michelson | Michelson interferometry |
| Interferometria ottica | Optical interferometry |
| Interferometria stellare | Stellar interferometry |
| Interferometro di Michelson | Michelson interferometer |
| Interferometro VIRGO | Virgo interferometer |
| interferone | interferon |
| interfogliare | interleave |
| Interglaciazione Riss-Würm | Eemian interglacial |
| Intergovernmental Panel on Climate Change | Intergovernmental Panel on Climate Change |
