| Acronym | Meaning |
| ATPASE | Adenosine Triphosphatase |
| TIAS | Technology Investment Assessment Screen |
| TDVP | Time-dependent Variational Principle (in Scattering Calcns.) |
| PRESS | Prediction Error Sum Of Squares |
| OPA | Optical Parametric Amplifier |
| MCC | Modified Continuous Cooking [of Pulp] |
| CEC | Cation Exchange Capacity |
| IMBPT | Interaction Many-body Perturbation Theory |
| SSF | Slow Sand Filtration (water Treatment) |
| WHMIS | Workplace Hazardous Materials Information System (Canada) |