"perturber" meaning in English

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  "etymology_text": "From perturb + -er.",
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      "form": "perturbers",
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          "text": "The queen forgot the dignity of her station and the softness of her sex, and, in language more fit for the markets than the court, called him rogue, and traitor, and perturber of the public peace; […]",
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        "One who or that which perturbs."
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          "text": "This moon is a significant perturber.",
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        "A source of perturbation."
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        "(physics) A source of perturbation."
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        "physical-sciences",
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  "word": "perturber"
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        "One who or that which perturbs."
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