has gloss | (noun) a number representing a quantity assumed to have a fixed value in a specified mathematical context; "the velocity of light is a constant" constant |
lexicalization | eng: constant |
subclass of | (noun) a concept of quantity involving zero and units; "every number has a unique position in the sequence" number |
has subclass | (noun) the number of molecules in a mole of a substance (approximately 602,250,000,000,000,000,000,000) Avogadro's number, Avogadro number |
has subclass | (noun) constant used in the calculation of the ideal gas constant Boltzmann's constant |
has subclass | (noun) a constant number that serves as a measure of some property or characteristic coefficient |
has subclass | (noun) an arbitrary constant in the equations of general relativity theory cosmological constant |
has subclass | (noun) (chemistry) the ratio of concentrations when equilibrium is reached in a reversible reaction (when the rate of the forward reaction equals the rate of the reverse reaction) equilibrium constant |
has subclass | (noun) (physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole universal gas constant, gas constant, R |
has subclass | (noun) (physics) the universal constant relating force to mass and distance in Newton's law of gravitation G, gravitational constant, constant of gravitation, universal gravitational constant |
has subclass | (noun) (cosmology) the ratio of the speed of recession of a galaxy (due to the expansion of the universe) to its distance from the observer; the Hubble constant is not actually a constant, but is regarded as measuring the expansion rate today Hubble's constant, Hubble's parameter, Hubble constant, Hubble parameter |
has subclass | (noun) the charge on an ion is equal to a constant charge e multiplied by an integer from 1 to 15 ionic charge |
has subclass | (noun) the constant value of the ratio of two proportional quantities x and y; usually written y = kx, where k is the factor of proportionality factor of proportionality, constant of proportionality |
has subclass | (noun) the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second speed of light, light speed, c |