| Acronym | Meaning |
| VEEH | Variable Electronegativity Extended Hueckel Method |
| ISIRS | International Sorption Information Retrieval System |
| PAZ | Protective Action Zone |
| BODC | British Oceanographic Data Center |
| ASCW | Axial Spin Current Wave (type Of Hartree-Fock Wave Function) |
| AHR | Airway Hyperresponsiveness |
| ULTRA | Underground Leak Transport Assessment Model |
| BPO | Benzoyl Peroxide |
| APEO | Alkylphenol Ethoxylates |
| IFRTS | Internal-floating-roof Tanks |