| Acronym | Meaning |
| IDA | Isotope Dilution Analysis |
| CLIA-88 | Clinical Laboratory Improvement Amendments Of 1988 |
| TIME | Test, Inspect, Measure, And Evaluate |
| RARE | Retinoic Acid-response Element |
| MW | Molecular Weight |
| QPMDA | Quasiparticle Mean Density Approxn. (assocd. With Local-d. Theory) |
| AIN | Advanced Intelligent Networks |
| HIRLAM | High Resolution Limited Area Model |
| CVO | Canonical Virtual Orbital |
| DSN | Deep Space Network |