| Acronym | Meaning |
| ETEAO | Even-tempered Exponential Atomic Orbital |
| BTK | Bruton Tyrosine Kinase |
| HST | Hubble Space Telescope |
| MOV | Motor Operated Valve |
| FPGA | Field-programmable Gate Array |
| DBR | Distributed Bragg Reflector |
| FNSI | Finding Of No Significant Impact |
| PPAC | Parallel-plate Avalanche Counter |
| GAD | Glutamic Acid Decarboxylase |
| HEV | Hybrid Electric Vehicle |