| Acronym | Meaning |
| APCD | Air Pollution Control Device |
| IRGL | Interagency Regulatory Liaison Group |
| PALMS | Particle Analysis By Laser Mass Spectrometry |
| CCMC-T2 | Coupled-cluster Multiconfigurational (double-excitation Method With Cluster Operator Approximated By T2) |
| PWHF | Plane-wave Hartree-Fock |
| IRBIC | Infrared Beam Induced Current |
| CNDO/S | Complete Neglect Of Differential Overlap/spectroscopic |
| DPASV | Differential Pulse Anodic Stripping Voltammetry |
| CMBR | Cosmic Microwave Background Radiation |
| ACC | Antarctic Circumpolar Current |