| Acronym | Meaning |
| IDF | Insoluble Dietary Fiber |
| OEM | Original Equipment Manufacturer |
| MCR | Mutual Climate Range |
| TEDS | Timed Exposure Diffusive Sampler (for Air Pollution) |
| CDOE | Charge-dependent Orbital Exponent Theory |
| QPEN | Quantum-mech. Potential (based On Interactios Of) Electrons (and) Nuclei |
| MLC | Myosin Light Chain |
| CCPS | Center For Chemical Process Safety |
| TMFA | Three-mode Factor Analysis |
| QAS | Quality Assurance Standard |