| Acronym | Meaning |
| OPO | Optical Parametric Oscillator |
| CCIX | Continuous Countercurrent Ion Exchange |
| SPACE | Spatial And Chemical Shift-encoded Excitation |
| GEMI | Global Environmental Management Initiative |
| BLS | Bare Lymphocyte Syndrome |
| ICTP | Telopeptide Of Type-I Collagen |
| LST | Local Solar Time |
| DF-SCF | Dirac-Fock Self-consistent Field |
| CBO | Corrected Born-Oppenheimer (in Calcns. For Mol. Complexes) |
| SAW | Self-avoiding Walk [modeling] |