| Acronym | Meaning |
| HIT | Heparin-induced Thrombocytopenia |
| PHF | Periodic Hartree-Fock |
| HCL | Hollow Cathode Lamp |
| IGF | Insulin-like Growth Factor |
| SPARC | Stratospheric Processes And Their Role In Climate |
| NSCSS | Noise-suppressing Capillary Separation System |
| BK | Brinkman-Kramers (approxn. In Ion-mol. Collision Quantum Calcn.) |
| MVE | Methyl Vinyl Ether |
| ACLSV | Apple Chlorotic Leaf Spot Virus |
| PDVSA | Petroleos De Venezuela |