(quantum mechanics) The Heisenberg uncertainty principle.

(quantum mechanics) The 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.

a peculiar principle once erroneously supposed to form the basis of all vegetable extracts

plural of principle

Third-person singular simple present indicative form of principle

(physics) The assumption that each point on a wavefront may be regarded as a source of secondary waves and that the position of the wavefront at a later time is determined by the envelope of these secondary waves; proposed in order to explain the fact that light travels in a straight line and casts sharp shadows.

(chemistry) A principle stating that, if a chemical system at equilibrium experiences a change in concentration, temperature, or total pressure, the equilibrium will shift in order to minimize that change.

The notion that more will be given to those that already have.

The principle that describes the phenomenon wherein a small percentage of a population accounts for a large proportion of a particular characteristic of that population.