| Acronym | Meaning |
| DIU | Data Information Unit (of WOCE Data System) |
| HFRR | High Frequency Reciprocating Rig |
| REP | Radiological Emergency Planning |
| GMI | Giant Magnetoimpedance |
| OWOW | Office Of Wetlands |
| APUMPN | Approximately Projected Unrestricted Moeller-Plesset Nth-order |
| GMA | Glycidyl Methacrylate |
| SCF | Single Crystal Fiber |
| TMS | Transmission Moessbauer Spectroscopy ~ ~ |
| GO-SCF | Gaussian Orbital Self-consistent Field |