| Acronym | Meaning |
| ORI | Octane Requirement Increase |
| DPIA | Digital Printing And Imaging Association |
| BAT | Brown Adipose Tissue |
| CAEAL | Canadian Association For Environmental Analytical Laboratories |
| PENIS | Proton-enhanced Nuclear Induction Spectroscopy |
| MS-RC(XI) | Multiple Scattering Relativistic Correlated (calcn. Method) |
| MSI | Microsatellite Instability |
| TBN | Total Base Number |
| APT | Accelerator Production Of Tritium |
| CLSM | Confocal Laser Scanning Microscopy |