| Acronym | Meaning |
| GCS | Geo-Common Subsystem (subsystem Of AIRS) |
| DSP | Digital Signal Processor |
| SDQ-MBPT | Single-double-quadruple Excitation Many-body Perturbation Theory |
| CCD | Carbonate Compensation Depth |
| SH3 | Src Homology 3 |
| YAC | Yeast Artificial Chromosome |
| RUP | Rumen-undegradable Protein |
| VRPA | Variational Random Phase Approxn. |
| APOMA | American Precision Optics Manufacturers Association |
| NIST | National Institute Of Standards And Technology (formerly NBS) |