Definition of pinch effect in English:

pinch effect

noun

Physics
  • The constriction of a plasma through which a large electric current is flowing, caused by the attractive force of the current's own magnetic field.

    • ‘It also generated a convincing version of the transition from synchronized flow to a growing jam called the ‘pinch effect.’’
    • ‘Mr Michael Smith and colleagues have developed a computer model that successfully reproduces the so-called ‘pinch effect’ which sparks off a jam.’