| Acronym | Meaning |
| IMA | Ion Microanalysis |
| PESM | Photoelectron Spectromicroscopy |
| WSOEA | Wallace Second-order Eikonal Approximation |
| SPUMPN | Single-annihilation Procedure Unrestricted Moeller-Plesset Nth-order |
| CJCP | Corrected Coupled J Cross-polarization Spectra |
| LDPE | Low Density Polyethylene |
| HRPA | Higher Random Phase Approximation |
| BEW | Base (or Biological) Equivalent Weight |
| NTU | Number Of Transfer Units (in Packed Tower Aeration System) |
| LLRD | Long-lived Radioactive Dust |