| Acronym | Meaning |
| ERDA | US Energy Research And Development Administration |
| BGG | Bovine Gamma Globulin |
| DPH | Diamond Pyramid Hardness |
| ATSR | Along-Track Scanning Radiometer |
| EMAP | Environmental Monitoring And Assessment Program (US EPA) |
| ACPR | Annular Core Pulse Reactor |
| CES | Committee On Earth Science (Office Science & Technology Policy) |
| HSC | Hematopoietic Stem Cells |
| LENA | Low-energy Neutral Atom |
| RI | Refractive Index |