brachistochrone

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UK/bɹəˈkɪstəkɹəʊn/US/bɹæˈkɪstəkɹoʊn/

noun

A cycloid; the curve of fastest descent between two points.

Scrabble 27

Meanings

nounbrachistochrone (plural brachistochrones)

plural brachistochrones

  1. mathematicsA cycloid; the curve of fastest descent between two points.
    1 more example

    Let A and B be two fixed points. Then the time it takes a particle to slide under the influence of gravity along some path joining A and B depends on the choice of the path (curve), and hence is a functional. The curve such that the particle takes the least time to go from A to B is called the brachistochrone.

    1963, Gelfand, I.M. and S.V. Fomin, Calculus of Variations, Prentice-Hall, Inc., page 3

Origin

  1. Ancient Greekβράχιστος“shortest”
  2. Englishbrachistochrone

From Ancient Greek βράχιστος (brákhistos, “shortest”) + χρόνος (khrónos, “time”). The term was coined by Johann Bernoulli.

Full word history & related roots →

Translations

Chinese Mandarin 最速降線 /最速降线
  • 最速降線 /最速降线 (zuìsùjiàngxiàn)cycloid — see also cycloid
Finnish brakistokroni
  • brakistokronicycloid — see also cycloid
French brachistochrone
  • brachistochronecycloid — see also cycloid
Italian brachistocrona
  • brachistocronacycloid — see also cycloid
Portuguese braquistócrona
  • braquistócronacycloid — see also cycloid
Romanian brahistocronă
  • brahistocronăcycloid — see also cycloid
Cite this entry
APA

brachistochrone. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/brachistochrone

MLA

“brachistochrone.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/brachistochrone. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “brachistochrone,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/brachistochrone.

Source: brachistochrone on Wiktionary, CC BY-SA 4.0.