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perturb
used in a sentence

2 meanings
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1  —as in:
she was perturbed
Definition to disturb in mind or make uneasy
  • She is not perturbed by attacks from a hostile press.
perturbed = disturbed or made uneasy
Other Uses (with this meaning)
  • Rest, rest, perturbed spirit!
    William Shakespeare  --  Hamlet
  • She was perturbed by the criticism, but resolved to continue.
  • I walked up and down my room hastily and perturbed, while my imagination conjured up a thousand images to torment and sting me.
    Mary Shelley  --  Frankenstein
  • Customers became perturbed by the high maintenance expenses.
  • Fundamental Islamicists threaten to perturb the social order in Algeria and Egypt
  • Patel did not seem perturbed.
    Amy Tan  --  The Bonesetter's Daughter
  • perturbed = disturbed or made uneasy
  • ...senses her feelings, dimly, with perturbation.
    Tennessee Williams  --  The Glass Menagerie
  • perturbation = uneasiness
  • When Don Quixote heard this his amazement was redoubled and his perturbation grew greater than ever,
    Miguel de Cervantes  --  Don Quixote
  • perturbation = disturbance of mind
  • I was glad for Zach (although at the same time slightly perturbed that Beanie was bearing her troubles alone).
    Melody Carlson  --  Becoming Me
perturbed = disturbed

Dictionary / pronunciation — Google®Dictionary list — Onelook.com®
2  
perturbation of the orbit
Definition physics or astronomy:  a secondary influence on a system that causes it to deviate slightly
  • The planet, Neptune, was discovered after its existence was predicted by perturbations in Uranus' orbit.
Other Uses (with this meaning)
  • If the perturbations are small, the procedure should work.
  • perturbations = a secondary influence on a system that causes it to deviate slightly
  • One has to study the evolution of perturbations over time to find out if the configuration is stable.
  • A great perturbation in nature,—to receive at once the benefit of sleep, and do the effects of watching—
    William Shakespeare  --  Macbeth
  • perturbation = deviation (from the natural course of things)
  • from study and perturbation of the brain
    William Shakespeare  --  Henry IV, Part 2
  • perturbation = disturbance (of the mind)
  • damped stochastic perturbations
  • What qualifying considerations allayed his perturbations?
    James Joyce  --  Ulysses
  • The Major thought he recognized the piano, though, with the picture over it, as it used to be in former days, and his perturbations were renewed.
    William Makepeace Thackeray  --  Vanity Fair
  • Also, there were comings and goings, and the erstwhile placid atmosphere of the cabin was vexed with strange perturbations and unrest.
    Jack London  --  White Fang
  • Then you looked for perturbations that might indicate other planets.
    John Ringo  --  Live Free or Die

Dictionary / pronunciation — Google®Dictionary list — Onelook.com®
Less commonly:
More rarely, perturbation can be used in the more general sense meaning: to disturb in mind or make uneasy -- as when Jane Austen wrote: "the perturbation of Elizabeth's feelings was at every moment increasing."
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