| Acronym | Meaning |
| MSIS | Mass Spectrometer And Incoherent Scatter |
| DWT | Discrete Wavelet Transform |
| CT | Disinfection Concentration Contact Time |
| RMOS | Rotated Morse Oscillator Spline (function For Potential Surface Calcn.) |
| CSA | Coupled Static Approxn. (in Scattering Calcns.) |
| ATAS | Advance Technology Alert System |
| ITIES | Interface Between Two Immiscible Electrolyte Solutions |
| GFAA | Graphite Furnace Atomic Absorption |
| EQCIS | Electrochemical Quartz Crystal Impedance System |
| CCD | Chemical Composition Distribution [of Polymers] |