1. of, relating to, or involving perturbation; causing or characterized by disturbance or disruption
Usage: technical; formal
2. in physics and mathematics, relating to or based on perturbation theory, a method of approximation used when exact solutions are difficult to obtain
Usage: technical; physics; mathematics

Examples

• The perturbational effects of the solar wind on Earth's magnetosphere are well documented.
• Scientists used perturbational analysis to model the behavior of the quantum system.
• The perturbational approach allowed researchers to solve the complex differential equation.
• Gravitational perturbational forces slightly altered the asteroid's trajectory.
• The perturbational method proved useful when direct calculation was impossible.