(physics) an effect that arises from the relation between the angular momentum and the magnetization of a magnetic substance

(physics) the magnetic self-attraction of parallel electric currents having the same direction; the restriction of a flowing plasma because of this attraction

(sociology) the observation that people often do or believe what they think many other people do.

An artificially created or enhanced sound, used to accompany the action of a dramatic production, such as a film, play or video game

(physics) The visible scattering of light along the path of a beam caused by discontinuities such as suspended particles.

(physics) The generation of an electric current in an intermetallic semiconductor in a magnetic field by the action of light.

(ecology) The negative population growth observed at low population densities.

(physics) The tendency of alternating current to distribute itself in a conductor such that the current density is greater near the surface than near the core. The effect increases with frequency.

plural of greenhouse effect

(psychology) A strong opposing response caused by attempts to restrict a person's freedom or change their attitudes.