| Acronym | Meaning |
| CHCS | Chemical Hazards Communication Society |
| MIG | Metal Inert Gas (welding) |
| CDM | Clean Development Mechanism |
| MCQDT | Multichannel Quantum Defect Theory |
| CHO | Complex Harmonic Oscillator (in Mol. Scattering Theory) |
| OE | Office Of Enforcement |
| XGRS | X-ray/gamma-ray Spectrometer |
| ASMO | Antisymmetrical Molecular Orbital |
| EAP | Electroactive Polymer |
| DENT | Double-edge Notched Tension |