principle of least action

proper noun

A variational principle that, when applied to the action of a mechanical system, yields the equations of motion for that system. It states that the trajectories (i.e. the solutions of the equations of motion) are stationary points of the system's action functional.

Similar
stationary action principle

Meanings

proper noun
  1. natural sciencesA variational principle that, when applied to the action of a mechanical system, yields the equations of motion for that system. It states that the trajectories (i.e. the solutions of the equations of motion) are stationary points of the system's action functional.

    Synonyms: stationary action principle

Synonyms & antonyms

proper nounA variational principle that, when applied to the action of a mechanical system, yields the equations of motion for that system. It states that the trajectories (i.e. the solutions of the equations of motion) are stationary points of the system's action functional.

Similar
stationary action principle

Translations

Finnish pienimmän vaikutuksen periaate
  • pienimmän vaikutuksen periaateTranslations
Japanese 最小作用の原理
  • 最小作用の原理 (saishō sayō no genri)Translations
Polish zasada najmniejszego działania
  • zasada najmniejszego działaniaTranslations
Cite this entry
APA

principle of least action. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/principle%20of%20least%20action

MLA

“principle of least action.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/principle%20of%20least%20action. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “principle of least action,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/principle%20of%20least%20action.

Source: principle of least action on Wiktionary, CC BY-SA 4.0.