The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- ElectronVolt (0 members)
- Electrolysis (0 members)
- ChemicalCompound (0 members)
- Milling (0 members)
- LuminousFlux (0 members)
- ProcessEnvironment (0 members)
- ExtentOfReaction (0 members)
- MassFluxDimension (0 members)
- GibbsEnergy (0 members)
- Acceleration (0 members)
- HafniumAtom (0 members)
- ThermodynamicEfficiency (0 members)
- DiffuseLayerPotential (0 members)
- LNOElectrode (0 members)
- TerbiumAtom (0 members)
- CapacityFade (0 members)
- Tool (0 members)
- Dust (0 members)
- RadiantFlux (0 members)
- AngularWaveNumber (0 members)
- PeakPotential (0 members)
- EndOfLineTesting (0 members)
- MolybdenumSymbol (0 members)
- DischargeCurrent (0 members)
- Width (0 members)
- AmountDimension (0 members)
- Silicon (0 members)
- MaterialRelation (0 members)
- MasslessElementary (0 members)
- SeparatorRole (0 members)
- Equation (0 members)
- PlatinumSymbol (0 members)
- MagneticSusceptibility (0 members)
- Process (0 members)
- OganessonSymbol (0 members)
- ExchangeIntegral (0 members)
- GyromagneticRatioOfTheElectron (0 members)
- ElectronRadius (0 members)
- Iron (0 members)
- Wrapping (0 members)
- VolumetricCapacity (0 members)
- ElectrolyticConductivity (0 members)
- ShortRangeOrderParameter (0 members)
- Hertz (0 members)
- MagnetomotiveForce (0 members)
- Yotta (0 members)
- CausalSystem (0 members)
- SpeedFractionUnit (0 members)
- SolidAngle (0 members)
- Hypothesis (0 members)