| Acronym | Meaning |
| IGY | International Geophysical Year |
| EEA | European Environment Agency |
| ACE | Alliance For Clean Energy |
| LFT | Liver Function Test |
| UTP | Unitary Transformation (based) Perturbation (theory) |
| DCCC | Droplet Counter Current Chromatography |
| CAMM | Computer-aided Molecular Modeling |
| MRINDO/S | Modified Rydberg Intermediate Neglect Of Differential Overlap/spectral (or Screening) |
| DAIRS | Differential Absorption Infrared Sensor |
| NRMS | Neutralization-reionization Mass Spectrometry |