| Acronym | Meaning |
| FFT | Fast Fourier Transform |
| ICNZ | International Committee On Natural Zeolites |
| SPARC | Scholarly Publishing & Academic Resources Coalition |
| ADRF | Adiabatic Demagnetization In The Rotating Frame |
| NFE-TB | Nearly-free-electron Tight-bonding (for Electronic Structure) |
| IVAP | Intimate Valence Alternation Pairs (bonding Model In Electronic Structure Calcns.) |
| EXGEM | Extended Geminal (model Correlated Wave Function) |
| COLIWASA | Composite Liquid Waste Sampler |
| AOB | Ammonia Oxidizing Bacteria |
| GSA | Geological Society Of America |