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perturber

  • a word derived from perturb.
    perturb
    verb (used with object)
    to disturb or disquiet greatly in mind; agitate.

Example Sentences

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This action takes place if a slate, a pane of glass, or a shingle is interposed between the needle and its perturber.

From Little Masterpieces of Science: Invention and Discovery by Iles, George

There's less of it with you to provide for, and it's less a perturber of your reckoning.

From The Letters of Henry James (volume I) by James, Henry