| Acronym | Meaning |
| ASF | Atomic Sensitivity Factor |
| GLOSS | Global Sea Level Observing System (of IOC) |
| BDST | Bed-depth Service Time |
| GDP | Glow Discharge Plasma (for Atomic Emission Spectrometry) |
| PNR | Polarized Neutron Reflection |
| NOAO | National Optical Astronomy Observatories |
| SLED | Superluminescent Light Emitting Diode |
| RBCODUR | Readily Biodegradable Chemical Oxygen Demand Uptake Rate |
| FACS | Fluorescence Atom-coincidence Spectroscopy |
| PRA | Plasma Renin Activity |