| Acronym | Meaning |
| XCC | Expectation-value Coupled-cluster (in Correlation Energies And Electronic Properties Of Many-electron Systems Calcns.) |
| SCOP | Structural Classification Of Proteins |
| SARAH | System For Advising On The Regulations For Assessing Hazards |
| SOHO | Solar And Heliosphere Observatory |
| FBR | Finite Basis Representation (in Wave Fct. Calcn. For Nuclear Motion On Potential Energy Surface) |
| PLM | Polarized-light Microscopy |
| CCCC | Complex-coordinate Coupled-channel (method In Calcns. On Rotational And Vibrational Predissocn.) |
| SAFARI | Southern African Regional Science Initiative |
| DET | Direct Nonradiative Electronic Energy Transfer |
| CITS | Current-imaging Tunneling Spectroscopy |