| Acronym | Meaning |
| CA | Chromosomal Abberation |
| RFCCU | Residue Fluid Catalytic Cracking Unit |
| ASF | Augmented-space Formalism (a Generalization Of CPA) |
| CC | Coupled-cluster (quantum Calcn. Method) |
| LTTD | Low Temperature Thermal Desorption |
| ECSPM | Electrochemical Scanning Probe Microscopy |
| WLM | Working Level Month (for Radiation Exposure) |
| DTDA | Differential Thermal Desorption Analysis |
| PAM | Peptidylglycine Alpha-amidating Monooxygenase |
| ERP | Effective Refractory Period |