| Acronym | Meaning |
| PWRI | Public Works Research Institute (Japan) |
| ACI | Alloy Casting Institute |
| TEO | Topological Equivalent Orbital |
| NET | Norepinephrine Transporter |
| TRO | Tubular Reverse Osmosis |
| BERG | Building Effects Review Group |
| OPW | Orthogonalized Plane Wave |
| BBIC | Bioluminescent Bioreporter Integrated Circuits |
| CPF | Coupled-pair Formalism |
| RFGD | Radio-frequency Glow Discharge |