perturb

verb

1. disturb in mind or make uneasy or cause to be worried or alarmed

   verb.emotion

   Examples

   She was rather perturbed by the news that her father was seriously ill.

   Synonyms cark disorder disquiet distract trouble unhinge

   Source: WordNet 3.0

2. disturb or interfere with the usual path of an electron or atom

   verb.motion

   Examples

   The electrons were perturbed by the passing ion.

   Source: WordNet 3.0

3. cause a celestial body to deviate from a theoretically regular orbital motion, especially as a result of interposed or extraordinary gravitational pull

   verb.motion

   Examples

   The orbits of these stars were perturbed by the passings of a comet.

   Source: WordNet 3.0

4. throw into great confusion or disorder

   verb.change

   Examples

   Fundamental Islamicists threaten to perturb the social order in Algeria and Egypt.

   Synonyms derange throw out of kilter

   Source: WordNet 3.0

5. To disturb; to agitate; to vex; to trouble; to disquiet.

   verb

   Source: webster1913