| Acronym | Meaning |
 | AADO | Angular (momentum Conservation) Average Dipole Orientation Theory (in Io-mol. Reactions) |
 | VFF | Valence Force Field (in Electronic-structure Calcns.) |
 | DGNAA | Delayed Gamma-ray Neutron Activation Analysis |
 | BIF | Boilers And Industrial Furnaces (USEPA Rule) |
 | NSWMA | National Solid Wastes Management Association |
 | CADD | Computer Aided Drafting And Design |
 | OAQPSTTN | Office Of Air Quality Planning And Standards Technology Transfer Network |
 | EFTA | European Free Trade Association |
 | CEH | Cholesteryl Ester Hydrolase |
 | COP | Coefficient Of Performance |