| Acronym | Meaning |
| CHAOS | Canadian High Acceptance Orbit Spectrometer |
| CCR | Council For Chemical Research |
| MSCE | Modified Semiclassical Exchange (aproxn. In Scattering Calcns.) |
| FAS | Federation Of American Scientists |
| LAI | Leaf Area Index |
| MSBAR | Molecular Structure-biological Activity Relationship |
| ABEP | Acetate Buffer Extraction Procedure |
| AAM | Automated Auger Microprobe |
| HPHF | Half-projected Hartree-Fock Model |
| FBR | Finite Basis Representation (in Wave Fct. Calcn. For Nuclear Motion On Potential Energy Surface) |