| Acronym | Meaning |
| DRMS | (U.S.) Defense Revitalization And Marketing Service |
| ARC | Arc-second Raster Chart - Association For Retarded Citizens - Appalachian Regional Commission |
| LOC | Level Of Operational Capability - Limited Operational Capability - Lines Of Code - Lines Of Communication - See Entry |
| OLS | Operational Linescan System |
| ESC | Embryonic Stem Cell |
| CART | Championship Auto Racing Teams (now Defunct) |
| FS | Femtosecond |
| FMSF | False Memory Syndrome Foundation |
| KT | Kilotesla |
| LEU | Low-Enriched Uranium |