| Acronym | Meaning |
| ENA | Energetic Neutral Atoms (astronomical Plasmas) |
| RNN | Recurrent Neural Network |
| NAPCA | National Air Pollution Control Administration |
| AACVD | Aerosol-assisted Chemical Vapor Deposition |
| ONDOR | Optical Nuclear Double Resonance |
| AGMA | American Gear Manufacturers Association |
| HEAST | Health Effects Assessment Summary Tables |
| RANTES | Regulated On Activation Normal T Cell Expressed And Secreted |
| ASM | American Society For Metals |
| EAAS | Electrothermal Atomic Absorption Spectrometry |