| Acronym | Meaning |
| EMTIC | Emission Measurement Technical Information Center |
| ECNICI | Electron Capture Negative Ion Chemical Ionization |
| NICA | Nonideal Competitive Adsorption |
| RCSI | Random Cooperative Strain Interaction |
| APCD | Air Pollution Control Device |
| FRP | Fiber Reinforced Plastic |
| ISEE | International Society For Environmental Epidemiology |
| MCDW | Matrix Continuum Distorted Wave |
| CIHT | Configuration-interaction Hylleraas-type (wave Function) |
| CFM | Contamination-free Manufacturing |