| Acronym | Meaning |
| TDSE | Time-dependent Schroedinger Equation |
| BOPP | Biaxially Oriented Poly(propylene) |
| PHFS | Perturbative Hartree-Fock-Slater |
| BOHS | British Occupational Hygiene Society |
| OCTS | Ocean Color And Temperature Sensor |
| ELA | Experimental Lakes Area (northwest Ontario) |
| BCKD | Branched-chain Alpha-ketoacid Dehydrogenase |
| OWPE | Office Waste Programs Enforcement |
| ART | Asphalt Residual Treatment |
| M-PCILO | Modified PCILO |