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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.


Broader (hypernym)activity

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

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


Broader (hypernym)discomposure

5. perturbation (act) the act of causing disorder


Broader (hypernym)disturbance

Narrower (hyponym)breakdown, dislocation, surprisal, surprise

Based on WordNet 3.0 copyright © Princeton University.
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