Perturbation (Noun)
Meaning 1
An unhappy and worried mental state; "there was too much anger and disturbance"; "she didn't realize the upset she caused me".
Classification
Nouns denoting natural processes.
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Meaning 2
The act of causing disorder.
Classification
Nouns denoting acts or actions.
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Meaning 3
Activity that is a malfunction, intrusion, or interruption; "the 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".
Classification
Nouns denoting natural events.
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Meaning 4
A disposition that is confused or nervous and upset.
Classification
Nouns denoting attributes of people and objects.
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Meaning 5
(physics) a secondary influence on a system that causes it to deviate slightly.
Classification
Nouns denoting natural phenomena.