| Acronym | Meaning |
| ETIC | Environmental Teratology Information Center |
| COF | Coefficient Of Friction |
| ARAR | Applicable Or Relevant And Appropriate Standards, Limitations, Criteria, And Requirements |
| APD | Avalanche Photodiode |
| TCDW | Target Continuum Distorted-wave (in At.-collision Calcns.) |
| OECD | Organization For Economic Cooperation And Development |
| ECTDMS | Electrochemical Thermal Desorption Mass Spectroscopy |
| AAW | Air Acetylene Welding |
| ITMS | Ion Trap Mass Spectrometer |
| LCDAO | Linear Combination Of Distorted Atomic Orbitals |