The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- CurrentChangeRate (0 members)
- CobaltIIBromide (0 members)
- FormingFromPlastic (8 members)
- Program (0 members)
- LidSealingCompound (0 members)
- ZincBistrifluoromethanesulfonylimide (0 members)
- Capacity (after formation) (0 members)
- SurfaceA2C (0 members)
- Electrolyte volume (0 members)
- PowderCoating (0 members)
- AcidicElectrolyte (2 members)
- TerbiumSymbol (0 members)
- HolisticSystem (9 members)
- RecombinationCoefficient (0 members)
- Priority (3 members)
- SolidAmalgamElectrode (0 members)
- SamariumAtom (0 members)
- DebyeAngularFrequency (0 members)
- MassChangeRate (0 members)
- MesoscopicSubstance (0 members)
- OWL Ontology (36 members)
- GrowingCrystal (0 members)
- SilverBattery (1 member)
- Multipoint BET Method (0 members)
- UpperFrequencyLimit (0 members)
- PerSquareKilogram (0 members)
- PhaseOfMatter (0 members)
- CelsiusTemperature (3 members)
- LutetiumSymbol (0 members)
- SodiumDifluorooxalatoborate (0 members)
- AngularMomentum (3 members)
- SulfurSymbol (0 members)
- TemperatureAreaPerMassTimeUnit (1 member)
- TemperatureMassPerAreaUnit (1 member)
- StandardEquilibriumConstant (0 members)
- MagneticReluctance (0 members)
- Calorimetry (0 members)
- IndiumSymbol (0 members)
- StepSignalCurrent (0 members)
- VoltAmpere (0 members)
- PicoGram (0 members)
- Prismatic (2 members)
- BohriumAtom (0 members)
- Mechanical stability (0 members)
- SIAcceptedUnit (14 members)
- NameData (1 member)
- PicoFarad (0 members)
- ElectrochemicalEquivalentCircuitModel (2 members)
- WattMetrePerSquareMetreSteradian (0 members)
- SiliconAirBattery (0 members)