| Acronym | Meaning |
| IPAN | Imaging Passive-active Neutron |
| ISRI | Institute Od Scrap Recycling Industries |
| QCFF/PI | Quantum Mechanical Consistent Force Field Method For Pi-electron Systems |
| PBFFF | Potential Barrier Field-flow Fractionation |
| EDXR | Energy Dispersive X-ray Reflectometry |
| ZCCSD | Z-vector Coupled Cluster (with) Single (and) Double Excitation |
| BHGM | Borehole Gravity Meter |
| NPL | Nuclear-pumped Laser |
| ASLEEP | Automated Scanning Low Energy Electron Probe |
| IAM | Integrated Assessment Modeling |