throw into great confusion or disorder; "Fundamental Islamicists threaten to perturb the social order in Algeria and Egypt"
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"
cause a celestial body to deviate from a theoretically regular orbital motion, especially as a result of interposed or extraordinary gravitational pull; "The orbits of these stars were perturbed by the passings of a comet"
disturb or interfere with the usual path of an electron or atom; "The electrons were perturbed by the passing ion"
a soft wet area of low-lying land that sinks underfoot
a difficulty or embarrassment that is hard to extricate yourself from; "the country is still trying to climb out of the mire left by its previous president"; "caught in the mire of poverty"
soil with mud, muck, or mire; "The child mucked up his shirt while playing ball in the garden"
cause to get stuck as if in a mire; "The mud mired our cart"