| Acronym | Meaning |
| RLS | Recursive Least Squares (algorithm) |
| UGLCC | Upper Great Lakes Connecting Channels |
| ADPKD | Autosomal Dominant Polycystic Kidney Disease |
| CEDE | Committed Effective Dose Equivalent |
| BGE | Background Electrolyte |
| PWEM | Partial-wave-expansion Method (in Electron Scattering Calcns.) |
| MDCB | Methods And Data Comparability Board |
| PI | Polydispersity Index |
| DHOT | Double-heterojunction Optical Thyristor |
| OFISP | Oscillating Flow Injection Stripping Potentiometry |