To disturb; to bother or unsettle. / (physics) To slightly modify the motion of an object. / (astronomy) To modify the motion of a body by exerting a gravitational force.

That can be perturbed

The quality or state of being perturbable.

plural of perturbation

Third-person singular simple present indicative form of perturb

present participle of perturb

One who or that which perturbs. / (physics) A source of perturbation.

Of, pertaining to, or causing perturbation

(transitive, dated) To perturb.

(uncountable) Agitation; the state of being perturbed / (countable) A small change in a physical system, or more broadly any definable system (such as a biological or economic system)