| Acronym | Meaning |
| ANPP | Aboveground Net Primary Production |
| MWTA | Medical Waste Tracking Act |
| ADONIS | Article Delivery Over Network Information Systems |
| LQG | Loop Quantum Gravity |
| ASK | Amplitude Shift Keying |
| TBBA | Tightly-bound-on-the-bond Approxn. (band Structure Crystal) |
| SANDS | Stratospheric Aitken Nuclei Detection System |
| SESAME | Second European Stratospheric Arctic And Midlatitude Experiment |
| ENAA | Epithermal Neutron Activation Analysis |
| IDMS | Isotope Dilution Mass Spectrometry |