perturb (
http://definr.com/perturb)
v 1: disturb in mind or make uneasy or cause to be worried or
alarmed; "She was rather perturbed by the news that her
father was seriously ill" [syn:
unhinge,
disquiet,
trouble,
cark,
distract,
disorder]
2: disturb or interfere with the usual path of an electron or
atom; "The electrons were perturbed by the passing ion"
3: cause a celestial body to deviate from a theoretically
regular orbital motion, esp. as a result of interposed or
extraordinary gravitational pull; "The orbits of these
stars were perturbed by the passings of a comet"
4: throw into great confusion or disorder; "Fundamental
Islamicists threaten to perturb the social order in
Algeria and Egypt" [syn:
derange,
throw out of kilter]