| Acronym | Meaning |
| OPAL | Optical Pumping Absorption Lidar |
| HEEPS | Health And Environmental Effects Profiles |
| EGAMS | Evolved Gas Analysis Mass Spectroscopy |
| CTARC | Chemical Testing And Assessment Research Commission |
| MPI | Multiphoton Ionization |
| TPQ | Threshold Planning Quantity |
| SAT | Sulfuric Acid Trihydrate (polar Stratosphere Cloud Aerosol) |
| ABP | Androgen-binding Protein |
| ROS | Restricted (or Roothaan) Open-shell (Hamiltonian) |
| NSH | Normalized Spherical Harmonic (hamiltonian) |