| Acronym | Meaning |
| CLEVER | Clinical Laboratory For Evaluation And Validation Of Epidemiologic Research |
| PPI | Proton Pump Inhibitor |
| LDA | Laser-Doppler Anemometer |
| NSCEP | National Service Center For Environmental Publications |
| L2 | Square Integrable (wave Function) (in Electron-atom Or -mol. Collisions) |
| LOES | Laser Optical Emission Spectroscopy |
| SOMBT | Spin-orbital Many-body Theory |
| TRACS | Trends In Atmospheric Constituents Study |
| APET | Amorphous Poly(ethylene Terephthalate) |
| MP2(FC) | MP2(frozen Core) Only (outer) Valence Electrons Included In The Approximation |