| Acronym | Meaning |
| CNO | Constrained Nonorthogonal Orbital (algorithm) |
| NRBC | Nucleated Red Blood Cells |
| CNAEL | Committee On National Accreditation Of Environmental Laboratories (US EPA) |
| RIMS | Resonance Ionization Mass Spectrometry |
| LAAS | Laser Atomic Absorption Spectrometry |
| MIC | Microbially Induced Corrosion |
| EIS | Electrochem. Impedance Spectroscopy |
| SPPES | Spin Polarized Photoelectron Spectroscopy |
| DED | Death Effector Domain |
| ASTER | Acceptable Short-term Exposure Range |