| Acronym | Meaning |
| MCCP | Mountain Cloud Chemistry Program |
| RSM | Reduction Symmetry Method (in Crystal Field Theory) |
| EPOCA | Environmental Project On Central America |
| FSCE | Free-solution Capillary Electrophoresis |
| FEL | Fixed Emission Limit |
| ADA | N-(2-acetamido) Iminodiacetic Acid |
| PTSPGF | Perturbative-type Single-particle Green Function |
| ANDA | Abbreviated New Drug Application |
| IBMS | Ion Beam Mass Spectrometry |
| NWEA | National Wood Energy Association |