(chemistry, physics) The characteristic change in optical rotatory dispersion and/or circular dichroism in the vicinity of an absorption band of a substance.

(physics) the generation of static electricity by friction between different materials

The situation in which one event sets off a chain of additional events.

(physics) the change in the spin of a gyroscope as it moves through curved spacetime

(physics) A test of the strong equivalence principle of general relativity that relies on detecting polarization in the orbit of the moon in the direction of the sun.

(chemistry) the increased stability of organic compounds having alternate single and double bonds

(pharmacology) The tendency of any medication or treatment, even an inert or ineffective one, to exhibit results simply because the recipient believes that it will work.

(fluid dynamics) In a flowing fluid, the occurrence of what is stated by Bernoulli's principle.

(US politics) The effect that a candidate for the corresponding political office (especially the office of President of the United States) can have on a close political election, when their candidacy results in the election being won by a candidate dissimilar to them, rather than a candidate similar to them.

(voting theory) the effect a minor party candidate with little chance of winning has upon a close election, when that candidate's presence in the election draws votes from a candidate similar to them, thereby causing a candidate dissimilar to them to win the election.