| Acronym | Meaning |
| ISDN | Isosorbide Dinitrate |
| QAPP | Quality Assurance Project Plan |
| SAFT | Spark Analysis For Traces |
| SIR | Statutory Invention Registration |
| HOMO | Highest Occupied Molecular Orbital |
| EMTO | Extended Muffin-tin Orbital Method |
| MP4(SDTQ) | Moeller-Plesset (perturbation Theory To) 4th Order With Single |
| CCMGA | Core-corrected Modified Glauber Approxn. (for Scattering) |
| D.I. | Direct Injection [of Diesel Engines] |
| CNC | Condensation Nucleus Counter |