| Acronym | Meaning |
| PIA | Peaking Impulse Approxn. (for Electron-exchange Collisions) |
| CAD | Collisionally Activated Dissociation |
| VO/CI | Virtual Orbital/configuration Interaction |
| LEEMS | Low Energy Electron Mass Spectroscopy |
| CARBASHD | Carbon-relayed Band-selected Homonuclear-decoupled |
| CVG | Chemical Vapor Generation |
| Y-STR | Y Chromosome Short Tandem Repeat |
| NASC | North American Shale Composite |
| MSFIA | Multisyringe Flow Injection Analysispar |
| HFFC | Hartree-Fock Frozen Core |