perturbation

/ˌpɜrtərˈbeɪʃən/
noun
  1. A feeling of worry or anxiety; a state of being disturbed.
    • The announcement caused great perturbation among the employees.
    • His perturbation was obvious when he heard the bad news.
    • She tried to hide her perturbation, but her hands were shaking.
  2. A small change in a system, process, or object from its normal or expected state, especially in science or mathematics.
    • Scientists measured the perturbation in the magnetic field after the solar flare.
    • The perturbation in the planet's orbit was caused by a nearby asteroid.
    • A slight perturbation in the data led to a different conclusion.
What does "perturbation" mean? | whatsthatwordmean | whatsthatwordmean