| Acronym | Meaning |
| SP | Surface Potential |
| NNRTI | Non-nucleoside Reverse Transcriptase Inhibitor |
| NDLM | Nondiagonal Lagrange Multiplier |
| IASAP | International Arctic Seas Assessment Project |
| MFC | Mass Flow Controller |
| MSA | Methanesulfonic Acid (air Pollutant) |
| RRPT | Registered Radiation Protection Technologist |
| CSA | Coupled-subshell Approxn. (in Calcns. On Inner-shell Ionization Collisions) |
| SAM | Scanning Acoustic Microscopy |
| ICOM | International Congress On Membranes |