| Acronym | Meaning |
| FOTOS | First-order Theory Of Oscillator Strength |
| ASECS | Antigen-specific Electrophoretic Cell Separation |
| ACGIH | American Conference Of Governmental Industrial Hygienists |
| SCOPW | Self-consistent Orthogonalized Plane Wave |
| AFSB | Anaerobic Fluidized Sludge Blanket |
| NLP | Natural Language Processing |
| REMCO | ISO Council Committee On Reference Materials |
| SCM | Self-consistent Multipolar (method In Metal Cluster Calcns.) |
| NIA | National Institute On Aging |
| HAUP | High Accuracy Universal Polarimeter |