| Acronym | Meaning |
| ROSDAL | Representation Of Organic Structure Description Arranged Linearly |
| IARC | International Agency For Research On Cancer |
| EQS | Environmental Quality Standard |
| LPCVD | Low Pressure Chemical Vapor Deposition |
| RC(XI) | (fully) Correlated Relativistic Local-density |
| CAREIRS | Conversion And Renewable Energy Inquiry And Referral Service |
| P-A TEST | Presence-absence Test |
| HGRF | Human Growth Hormone-releasing Factor |
| BOA | Bidirectional Orbital Approximation (in Valence Bond Theory) |
| PNDDO | Partial Neglect Of Diatomic Differential Overlap |