| Acronym | Meaning |
| MIP | Major Intrinsic Protein |
| GPEF | Generalized Potential Energy Function |
| ASP | Antisegregation Process |
| WLA | Waste Load Allocation |
| FIM | Forced Impulse Method (in Atom Ion-impact Ionization) |
| ROS | Restricted (or Roothaan) Open-shell (Hamiltonian) |
| ATAD | Auto Thermal Aerobic Digestion |
| DWEL | Drinking Water Equivalent Level |
| GOSAT | Greenhouse Gas Observing Satellite |
| NPY | Neuropeptide Y |