decadic absorbance,  |  | decadic absorbance,  |  |
| | decadic absorbance,  |  |
| decay constant |  | decay constant |  |
| | exponential decay |  |
| | exponential decay |  |
| degeneracy |  | degeneracy |  |
|  | degeneracy |  |
|  | degeneracy |  |
|  | degeneracy |  |
|  | degeneracy |  |
degree of reaction,  |  | degree of reaction,  |  |
density,  |  | mass density gradient,
,
|  |
| | mass density gradient,
,
|  |
| | mass-average velocity in electrolytes |  |
| | mass-average velocity in electrolytes |  |
dielectric polarization,  |  | dielectric polarization,  |  |
| | dielectric polarization,  |  |
| differential capacitance |  | differential capacitance |  |
diffusion coefficient,  |  | diffusion coefficient,  |  |
| | diffusion coefficient,  |  |
dilution rate, in biotechnology |  | dilution rate, in biotechnology |  |
disintegration energy,  |  | disintegration energy,  |  |
dissociation energy, ,
 |  | dissociation energy, ,
 |  |
|  | dissociation energy, ,
 |  |
distribution ratio,
in liquid-liquid distribution |  | distribution ratio,
in liquid-liquid distribution |  |
|  | distribution ratio,
in liquid-liquid distribution |  |
dose equivalent,  |  | dose equivalent,  |  |
doubling time in biotechnology | | | |
driving force (affinity) of a reaction,  |  | driving force (affinity) of a reaction,  |  |
dynamic viscosity,  |  | rotational correlation time, or  |  |
| | rotational correlation time, or  |  |