Definition of perturb in English:
1Make (someone) anxious or unsettled: they were perturbed by her capricious behavior [with object and clause]: they were perturbed that the bank had begun switching some of its problem loans
More example sentences
- There are, probably, two principal concerns that will be perturbing the potential visitor.
- She was not perturbed by the low attendance, insisting that most people on the street supported her position.
- What perturbs me though is the complete lack of value I have received from my taxes, that I have faithfully paid towards public health over the years.
disconcert, discomfit, unnerve, alarm, bother, distress, dismay, gnaw at, agitate, fluster, ruffle, discountenance
worried, unsettled, disturbed, concerned, troubled, upset, anxious, ill at ease, uneasy, disquieted, fretful;
disconcerted, discomposed, distressed, unnerved, alarmed, bothered, dismayed, agitated, flustered, ruffled, shaken, discountenanced
informal twitchy, rattled, fazed, unstrung
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.
- sense 2.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.
Pronunciation: /ˈpərtərˌbātiv, pərˈtərbətiv/adjective
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in the UK
Most popular in Canada
Most popular in Australia
Most popular in Spain
Most popular in Malaysia
Most popular in India
Most popular in Pakistan