Index - D
| Day | |
| 1 (Type/Class) | Data.Units.Astronomical |
| 2 (Data Constructor) | Data.Units.Astronomical |
| Deca | |
| 1 (Type/Class) | Data.Units.SI.Prefixes, Data.Metrology.SI.Poly, Data.Metrology.SI.Mono, Data.Metrology.SI |
| 2 (Data Constructor) | Data.Units.SI.Prefixes, Data.Metrology.SI.Poly, Data.Metrology.SI.Mono, Data.Metrology.SI |
| deca | Data.Units.SI.Prefixes, Data.Metrology.SI.Poly, Data.Metrology.SI.Mono, Data.Metrology.SI |
| Deci | |
| 1 (Type/Class) | Data.Units.SI.Prefixes, Data.Metrology.SI.Poly, Data.Metrology.SI.Mono, Data.Metrology.SI |
| 2 (Data Constructor) | Data.Units.SI.Prefixes, Data.Metrology.SI.Poly, Data.Metrology.SI.Mono, Data.Metrology.SI |
| deci | Data.Units.SI.Prefixes, Data.Metrology.SI.Poly, Data.Metrology.SI.Mono, Data.Metrology.SI |
| Degree | |
| 1 (Type/Class) | Data.Units.SI, Data.Metrology.SI.Poly, Data.Metrology.SI.Mono, Data.Metrology.SI |
| 2 (Data Constructor) | Data.Units.SI, Data.Metrology.SI.Poly, Data.Metrology.SI.Mono, Data.Metrology.SI |
| Density | |
| 1 (Type/Class) | Data.Dimensions.SI |
| 2 (Type/Class) | Data.Metrology.SI.MonoTypes, Data.Metrology.SI.Mono, Data.Metrology.SI |
| 3 (Type/Class) | Data.Metrology.SI.PolyTypes, Data.Metrology.SI.Poly |
| Dram | |
| 1 (Type/Class) | Data.Units.US.Avoirdupois |
| 2 (Data Constructor) | Data.Units.US.Avoirdupois |
| 3 (Type/Class) | Data.Units.US.Liquid |
| 4 (Data Constructor) | Data.Units.US.Liquid |
| 5 (Type/Class) | Data.Units.US.Apothecaries |
| 6 (Data Constructor) | Data.Units.US.Apothecaries |
| dryVolumeMeasures | Data.Units.US.DryVolume |
| Dyne | |
| 1 (Type/Class) | Data.Units.CGS |
| 2 (Data Constructor) | Data.Units.CGS |