| Acronym | Meaning |
| AA | Activation Analysis |
| ECB | European Chemicals Bureau |
| ASTER | Acceptable Short-term Exposure Range |
| DHBT | Double Heterojunction Bipolar Transistor |
| RTDM | Rough Terrain Dispersion Model (air Quality) |
| MCTDHF | Multiconfiguration Time-dependent Hartree-Fock |
| AMNH | American Museum Of Natural History |
| FOISD | Fiber Optic Isolated Spherical Dipole Antenna |
| CSACM | Canonical Statistical Adiabatic Channel Model (in Reactions) |
| GCC | Global Climate Coalition |