| Acronym | Meaning |
| CN | Condensation Nucleus |
| HMA | Hybrid Microelectronics Assembly |
| EOSDIS | Earth Observing System Data Information System |
| MASP-HMO | Mutual Additive Substituent Parameter-Hueckel Molecular Orbital |
| ECS | Electro-Chemical Society |
| GLP | Glucagon-like Peptide |
| SPRKKR | Spin-polarized Relativistic Korringa-Kohn-Rostoker |
| UCAS-SCF | Unrestricted Complete Active Space Self-consistent Field |
| AQDM | Air Quality Display Model |
| IBS | Irritable Bowel Syndrome |