To impair or destroy the composure of
It may perturb you if someone lets you know what's happening on the show before you've gotten a chance to watch it, and your TiVo may be your best friend if you have a day job.
The first news of the Russian attack did not perturb Austrian headquarters, though Gen.
It was not what he had read that vexed him, but the fact that the life out there in which he had now no part could perturb him.
perturb the model, such as variation of parameters in parametrization schemes and stochastic physics, will be explored.