| Acronym | Meaning |
| IRAS | Infrared Astronomy Satellite |
| PPMA | Parts Per Million Atomic |
| OSR | Office Of Science And Research |
| MISPE | Molecularly Imprinted Solid Phase Extraction |
| SME | Shape Memory Effect |
| IMO | International Maritime Organization |
| PPR | Projection Pursuit Regression |
| TRUEX | Transuranic Extraction |
| OLPGAA | On-line Prompt Gamma-ray Activation Analysis |
| DPUMPN | Double-annihilation Procedure Unrestricted Moeller-Plesset Nth-order |