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Dictionary definition for: Perturb
1. (v) 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"
2. (v) disturb or interfere with the usual path of an electron or atom; "The electrons were perturbed by the passing ion"
3. (v) 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"
4. (v) throw into great confusion or disorder; "Fundamental Islamicists threaten to perturb the social order in Algeria and Egypt"
WordNet 2.1 Copyright Princeton University. All rights reserved.
