Perturb Definition

perturbed, perturbs
perturbed, perturbs
To cause to be alarmed, agitated, or upset; disturb or trouble greatly.
Webster's New World
To cause disorder or confusion in; unsettle.
Webster's New World
To cause (a system) to become altered or imbalanced from a normal state.
Volcanic eruptions that perturbed the climate.
American Heritage
To cause perturbations in (the orbit of a planet, moon, etc.)
Webster's New World

To disturb; to bother or unsettle.


Origin of Perturb

  • Middle English perturben from Old French perturber from Latin perturbāre per- per- turbāre to throw into disorder (from turba confusion) (perhaps from Greek turbē)

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Middle English perturben, from Old French perturber, from Latin perturbare (“throw into confusion, confuse, disorder, disturb"), from per (“through") + turbare (“to confuse, disturb").

    From Wiktionary

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