| Acronym | Meaning |
| IFPMA | International Federation Of Pharmaceutical Manufacturers Associations |
| CCM | Cyclic Cluster Model (in CNDO For Deep Levels In Solids) |
| CCSOP | Close-coupling Second-order Potential (in Scattering) |
| NSTX | National Spherical Torus Experiment |
| CARB | California Air Resources Board |
| NRW | Null Reflecting Water |
| SAWD | Solid Amine Water Desorbed |
| XRMF | X-ray Microfluorescence |
| RMOS | Rotated Morse Oscillator Spline (function For Potential Surface Calcn.) |
| HFA | Humic And Fulvic Acids |