| Acronym | Definition |
|---|
| SSIU➣Spatial Science Innovation Unit (University of Sydney; Australia) |
| SSIU➣Singulate, Scan and Induction Unit |
| SSIU➣Systems Simulator Interface Unit |
| SSIU➣Simulated Subsystem Interface Unit |
| SSIU➣Small Scale Irrigation Unit (Kenya) |
| SSIU➣Stores Station Interface Unit |