disruption, perturbation
(noun) the act of causing disorder
perturbation, fluster
(noun) a disposition that is confused or nervous and upset
perturbation, disturbance
(noun) 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”
perturbation
(noun) (physics) a secondary influence on a system that causes it to deviate slightly
disturbance, perturbation, upset
(noun) an unhappy and worried mental state; “there was too much anger and disturbance”; “she didn’t realize the upset she caused me”
Source: WordNet® 3.1
perturbation (countable and uncountable, plural perturbations)
(uncountable) Agitation; the state of being perturbed
(countable) A small change in a physical system, or more broadly any definable system (such as a biological or economic system)
(countable, astronomy, physics) Variation in an orbit due to the influence of external bodies
Source: Wiktionary
Per`tur*ba"tion, n. Etym: [L. perturbatio: cf. F. perturbation.]
1. The act of perturbing, or the state of being perturbed; esp., agitation of mind.
2. (Astron.)
Definition: A disturbance in the regular elliptic or other motion of a heavenly body, produced by some force additional to that which causes its regular motion; as, the perturbations of the planets are caused by their attraction on each other. Newcomb.
Source: Webster’s Unabridged Dictionary 1913 Edition
4 April 2025
(verb) kill by cutting the head off with a guillotine; “The French guillotined many Vietnamese while they occupied the country”
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