| Acronym | Meaning |
| ANSI | American National Standards Institute |
| GMI | Giant Magnetoimpedance |
| NPOC | Nonpurgeable Organic Carbon |
| HAGAR | High Altitude Gas Analyzer |
| MSP | Manganese Stabilizing Protein |
| NEEIA | Nonseparation Electrochemical Enzyme Binding/immunoassay |
| AFRL | Air Force Research Laboratory |
| IRS | Inverse Raman Scattering |
| UCCD | (spin) Unrestricted Coupled Cluster (with) Double (excitations) |
| RXTE | Rossi X-ray Timing Explorer |