| Acronym | Meaning |
| INDO/SP | Intermediate Neglect Of Differential Overlap/spin Polarization |
| SMM | Scanning Magnetic Microscopy |
| STN | Super Twisted Nematic |
| MDQ | Minimum Detectable Quantity |
| ITAM | Immunoreceptor Tyrosine-based Activation Motif |
| PDS | Photothermal Deflection Spectroscopy |
| PWS | Public Water System |
| DSIMS | Dynamic Secondary Ion Mass Spectrometry |
| OPDIN | Ocean Pollution Data And Information Network |
| IWOP | Integration Within (an Ordered Product Of) Operators |