| Acronym | Meaning |
| LCCD | Linear Coupled-cluster (method With) Double (excitations) |
| PMO | Perturbational Molecular Orbital |
| NVLAP | National Voluntary Laboratory Accreditation Program |
| LMP | Laser Microprobe |
| GCR | Galactic Cosmic Rays (spacecraft Orbit) |
| DEPT | Distortionless Enhancement By Polarization Transfer |
| NAMICS | North American Chapter Of The International Chemometrics Society |
| USDW | Underground Source Drinking Water |
| REMUS | Remote Environmental Monitoring Units |
| ELA | Experimental Lakes Area (northwest Ontario) |