| Acronym | Meaning |
| OMO | Orthonormal Molecular Orbital |
| DIPPR | Design Institute For Physical Property Data |
| LAD | Leukocyte Adhesion Deficiency |
| HETE | Hydroxyeicosatetraenoic Acid |
| NIMS | Negative Ion Mass Spectrometry |
| SS-MR-CC | State-selective Multireference Coupled-cluster |
| HSDP | Hawaiian Scientific Drilling Project |
| PIA | Peaking Impulse Approxn. (for Electron-exchange Collisions) |
| M/Z | Mass-to-charge Ratio |
| ID | Inhibitory Dose |