(nuclear physics) The situation of the quantity of a radioisotope remaining constant because it is produced (by decay of a parent isotope) at the same rate that it decays.

(economics) A condition where a market price is established through competition such that the amount of goods or services sought by buyers is equal to the amount of goods or services produced by sellers.

plural of equilibrium price

plural of equilibrium constant

(physics) saturation vapor pressure

The state in which the concentrations of acidic and basic ions in a solution neutralize each other.

The equilibrium of allele and genotype frequencies postulated by the Hardy-Weinberg principle.

plural of equilibrium vapor pressure

(economics) The proposal that macroeconomic analysis be concerned with the theoretical consequences of optimizing behaviour by rational consumers, firms, and labourers, rather than with observable phenomena such as booms or slumps.