Definition of perturb in English:

perturb

Line breaks: per|turb
Pronunciation: /pəˈtəːb
 
/

verb

[with object]
  • 2Subject (a system, moving object, or process) to an influence tending to alter its normal or regular state or path: nuclear weapons could be used to perturb the orbit of an asteroid
    More example sentences
    • Drugs perturb the system through increasing or decreasing transmission or transmitter levels, or up or down regulating receptor populations.
    • It could change the heating structure of the atmosphere and perturb the climate system in ways we don't understand now.
    • In this way, we see that the two systems engage in an exchange, a feedback loop of information and effect, which serves to further change or perturb each system.

Derivatives

perturbable

adjective

perturbative

Pronunciation: /pəˈtəːbətɪv, ˈpəːtəbeɪtɪv/
adjective
sense 2.
More example sentences
  • In the perturbative expansion of a gauge theory, large numbers of Feynman amplitudes combine to produce mathematically simple expressions.
  • His logic, however, would have deprecated the early remarkable successes of perturbative quantum electrodynamics.
  • Such measurements can then be compared with predictions of perturbative QCD, a relatively tractable corner of the full theory.

Origin

late Middle English: from Old French pertourber, from Latin perturbare, from per- 'completely' + turbare 'disturb'.

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