| Acronym | Meaning |
| IMPATT | Impact Avalanche Transit-time |
| PRE | Pitting Resistance Equivalent |
| WSE | Wool Scouring Effluent |
| CATSAT | Cooperative Astrophysics And Technology Satellite |
| ACE | Aerosol Characterization Experiment |
| SPECT | Single Photon Emission Computerized Tomography |
| ICTA | International Confederation Of Thermal Analysis |
| NFCR | National Foundation For Cancer Research |
| OMTP | Overlap-multipole-expansion Procedure |
| DRP | Dynamic Reaction Path |