| Acronym | Meaning |
| ICNZ | International Committee On Natural Zeolites |
| DIU | Data Information Unit (of WOCE Data System) |
| UNS | Unified Numbering System For Metals And Alloys |
| READS | Restriction Enzyme Analysis Of Differentially-expressed Sequences |
| PCPAA | Prompt Charged Particle Activation Analysis |
| MED | Minimal Erythema Dose |
| TDSE | Time-dependent Schroedinger Equation |
| ARF | Acute Renal Failure |
| BLS | Bureau Of Labor Statistics |
| VCC-IOS | Vibrational Close-coupling-(rotational) Infinite-order Sudden (for Inelastic Mol. Collisions Calcns.) |