| Acronym | Meaning |
| GITXRF | Glancing Incidence And Takeoff X-ray Fluorescence |
| RAP | Remedial Action Project Or Plan |
| HOE | Holographic Optical Element |
| RHPA | Reverse Hemolytic Plaque Assay |
| TNN-TB | Third Neighbor Nonorthogonal (basis) Tight Binding |
| LVQ | Learning Vector Quantization |
| MBS | Minimum Basis Set Wave Function |
| IPC | International Patent Classification |
| OPA | Optical Parametric Amplifier |
| MFAG | Medical First Aid Guide For Use In Accidents Involving Dangerous Goods |