| Acronym | Meaning |
| GRPA | Generalized Random-phase Approximation |
| OPDIN | Ocean Pollution Data And Information Network |
| VE-PPP | Variable Electronegativity PPP |
| DPAV | Differential Pulse Adsorption Voltammetry |
| TECC | Tropospheric Effects Of Cloud Chemistry |
| NITS | National Institute Of Technology And Standards |
| APPH | Auger Peak To Peak Height |
| HATR | Horizontal Attenuated Total Reflection |
| CLL | Chronic Lymphocytic Leukemia |
| CGL | Comprehensive General Liability Policy |