Heisenberg uncertainty principle
- (physics, quantum mechanics) The principle that there is an absolute limit on the combined accuracy of certain pairs of simultaneous, related measurements, especially that of the position and momentum of a particle. Originally posited as a problem of measurement, it was soon refined as an inherent property of the universe.
- French: principe d'incertitude d'Heisenberg
- German: Heisenbergsche Unschärferelation, Unschärferelation
- Italian: principio di indeterminazione di Heisenberg
- Russian: при́нцип неопределённости Гейзенбе́рга
- Spanish: principio de indeterminación de Heisenberg