| Acronym | Meaning |
| SBMO | Subjacent Molecular Orbital |
| NRMS | Neutralization-reionization Mass Spectrometry |
| RPC | Regional Planning Commission |
| MLC | Mixed Lymphocyte Culture |
| IDTIMS | Isotope Diln. Thermal Ionization Mass Spectrometry |
| SPPES | Spin Polarized Photoelectron Spectroscopy |
| CASS | Computer Assisted Stratification And Sampling |
| MLVA | Multiple-locus Variable-number Tandem Repeat Analysispar |
| MEVVA | Metal Vapor Vacuum Arc |
| CCA | Crystalline Cluster Approach (in Electronic Structure Calcns.) |