Synonym: unit
one
(rest) mass of electron, (rest) mass of proton, (rest) mass of neutron
Alfven number
CIE colorimetric functions
Cowling number
Debye-Walle factor
Euler number
Fourier number
Fourier number for mass transfer
Froude number
Grashof number
Grashof number for mass transfer
Grüneisen parameter
Hartmann number
Knudsen number
Landau-Ginzburg number
Lewis number
Mach number
Madelung constant
Nusselt number
Nusselt number for mass transfer
Peclet number
Peclet number for mass transfer
Prandtl number
Rayleigh number
Reynolds number
Schmidt number
Stanton number
Stanton number for mass transfer
Strouhal number
Weber number
absolute activity
activity coefficient of B (in a liquid as a solid mixture)
activity coefficient of solute B (especially in a dilute solution),standard absolute activity of solute B (especially in a dilute solution)
activity of solvent A, relative activity of solvent A (especially in a dilute solution), osmotic coefficient of the solvent A (especially in a dilute solution), standard absolute activity of solvent A (especially in a dilute solution)
average logarithmic energy decrement
charge number of ion
coordinates trichromatic
coupling coefficient, leakage coefficient
degree of dissociation
dissipation factor, dissipance, reflection factor, reflectance, transmission factor, transmittance, absorption factor, absorbance
electric susceptibility
emissivity, spectral emissivity, emissivity at a specified wavelength, directional spectral emissivity
fast fission factor
fine structure constant
friction factor, coefficient of friction
g-factor of atom or electron, g-factor of nucleus
hyperfine structure quantum number
internal conversion factor
lethargy
linear strain, relative elongation, shear strain, volume or bulk strain
luminous efficiency, spectral luminous efficiency,luminous efficiency at a specified wavelength
magnetic Reynolds number
magnetic quantum number
magnetic susceptibility
microcanonical partition function, canonical partition function, grand-canonical partition function, grand partition function, molecular partition function, partition function of a molecule
mobility ratio
mole fraction of B, mole ratio of solute B
multiplication factor, infinite medium multiplication factor, effective multiplication factor
neutron number
neutron yield per fission, neutron yield per absorption
non leakage probability
nuclear spin quantum number
nucleon number, mass number
number of molecules or other elementary entities
number of turns in a winding, number of phases, number of pairs of poles
optical density
orbital angular momentum quantum number
order of reflexion
packing fraction, binding fraction
poisson ratio, poisson number
principle quantum number
proton number
proton number, atomic number
ratio of the specific heat capacities, ratio of the massic heat capacity, isentropic exponent
reactivity
refractive index
relative atomic mass
relative density, relative mass density
relative mass excess, relative mass defect
relative molecular mass
relative permeability
relative permittivity
resonance escape probability
short-range order parameter, long-range order parameter
spectral absorption factor, spectral absorptance, spectral reflectionfactor,spectral reflectance, spectral transmission factor, spectral transmittance, spectral radiance factor
spin angular momentum quantum number
standard absolute activity of B (in a gaseous mixture)
standard absolute activity of B (in a liquid or a solid mixture)
standard equilibrium constant
statistical weight
stoichiometric number of B
thermal diffusion ratio, thermal diffusion factor
thermal utilization factor
total angular momentum quantum number
transport number of ion B, current fraction of ion B
Acoustics
Atomic and Nuclear Physics
Characteristic Numbers (dimensionless parameters)
Electricity and Magnetism
Heat
Light and Related Electromagnetic Radiations
Mechanics
Nuclear Reactions and Ionizing Radiations
Physical Chemistry and Molecular Physics
Solid State Physics