English dictionary



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English noun: perturbation

1. perturbation (state) an unhappy and worried mental state


SamplesThere was too much anger and disturbance.
She didn't realize the upset she caused me.


Synonymsdisturbance, upset


Broader (hypernym)agitation

2. perturbation (phenomenon) (physics) a secondary influence on a system that causes it to deviate slightly


Broader (hypernym)influence


Narrower (hyponym)variation


Domain categorynatural philosophy, physics

3. perturbation (event) activity that is a malfunction, intrusion, or interruption


SamplesThe term `distress' connotes some degree of perturbation and emotional upset.
He looked around for the source of the disturbance.
There was a disturbance of neural function.


Synonymsdisturbance


Broader (hypernym)activity


Narrower (hyponym)bother, fuss, hassle, magnetic storm, trouble

4. perturbation (attribute) a disposition that is confused or nervous and upset


Synonymsfluster


Broader (hypernym)discomposure

5. perturbation (act) the act of causing disorder


Synonymsdisruption


Broader (hypernym)disturbance


Narrower (hyponym)breakdown, dislocation, surprisal, surprise









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