perturb

definition: throw into great confusion or disorder
example: Fundamental Islamicists threaten to perturb the social order in Algeria and Egypt
speech part: verb
synonyms: derange throw out of kilter
definition: disturb in mind or make uneasy or cause to be worried or alarmed
example: I was rather perturbed by the news that my father was seriously ill.
speech part: verb
synonyms: trouble
definition: cause a celestial body to deviate from a theoretically regular orbital motion, especially as a result of interposed or extraordinary gravitational pull
example: The orbits of these stars were perturbed by the passings of a comet
speech part: verb
synonyms:
definition: disturb or interfere with the usual path of an electron or atom
example: The electrons were perturbed by the passing ion
speech part: verb
synonyms:

perturb is explained and pronounced

How perturb is being used?