noun
- An unhappy and worried mental state.
- usage: "there was too much anger and disturbance"; "she didn't realize the upset she caused me"
- synonyms: disturbance, upset
- Physics) a secondary influence on a system that causes it to deviate slightly. (
- Activity that is a malfunction, intrusion, or interruption.
- usage: "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"
- synonyms: disturbance
- A disposition that is confused or nervous and upset.
- synonyms: fluster
- The act of causing disorder.
- synonyms: disruption
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). perturbation. Retrieved September 22, 2026, from http://smartdefine.org/perturbation/definitions/1210939 |
| Chicago | WordNet. 2010. "perturbation" http://smartdefine.org/perturbation/definitions/1210939 (accessed September 22, 2026). |
| Harvard | WordNet 2010, perturbation, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/perturbation/definitions/1210939>. |
| MLA | WordNet. "perturbation" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/perturbation/definitions/1210939> |