| Acronym | Meaning |
| D | Deuterium |
| LAD | Laser Aiming Device |
| ADCTS | Advanced Distributed Combat Training System |
| BBN | Bolt |
| DMC | (U.S.) Defense Management Council |
| SCRAM | Safety Control Rod Axe Man |
| DRET | Defence Research Establishment Toronto (obsolete 2002) |
| NRA | National Rifle Association |
| ASWORG | (U.S.) AntiSubmarine Warfare Operations Research Group |
| OSDL | Open Source Development Labs |