| Acronym | Meaning |
| CDR | Critical Design Review |
| SCATT | Scatterometer |
| Z-R | Relationship |
| A/D | Analog-to-digital |
| GRGC | Geologic Record Of Global Change |
| GRASP | Graphic Animation System For Professionals |
| NOAO | National Optical Astronomy Observatories |
| IRLS | Interrogation & Reading Location System |
| NSRDS | National Standard Reference Data System |
| INTERNET | The Collection Of All Interconnected Computer Networks Around The Globe That Use The TCP/IP Protocol |