| Acronym | Meaning |
| CVO | Canonical Virtual Orbital |
| CEFIC | Associazione Europea Dell'industria Chimica |
| COMAH | Control Of Major Accident Hazards |
| TEMIS | Total Emissions Model For Integrated Systems |
| HS-MR-CCSD | Hilbert Space-multireference-coupled Cluster (with) Single (and) Double (excitations) |
| LCGTO | Linear Combination Of Gaussian Type Orbitals |
| IMHEX | Internally Manifolded Heat Exchanger (molten Carbonate Fuel Cell Design) |
| CCM | Complex Coordinate Method (in Calcns. On Quantum Tunneling) |
| OMCVD | Organometallic Chemical Vapor Deposition |
| BHT | Brinell Hardness Test |