tautochronousadj.

Brit.

/ˈtɔːtəˌkrəʊnəs/, U.S.

/ˈtɔdəˌkroʊnəs/,

/ˈtɑdəˌkroʊnəs/

Origin: A borrowing from French, combined with an English element. Etymons: French tautochrone , -ous suffix.

Etymology: < French tautochrone, adjective (1732: see tautochrone n.) + -ous suffix.Quot. 1771 translates the title of ‘Sur les courbes tautochrones’, a paper by J.-L. Lagrange in Mém. de l'Acad. Royale des Sci. & Belles-Lettres 1765 (1767) 364.

Of a curve: that is a tautochrone. Also (of a body): that follows a tautochrone.

ΘΚΠ

the world > relative properties > number > geometry > curve > [adjective]

curval1730

tautochronous1771

the world > relative properties > number > geometry > curve > [adjective] > describing curves used in physics

catenarian curve1751

tautochronous1771

catenary1852

1771 Monthly Rev. 43 App. 524 On tautochronous curves. By M. De la Grange.

1850 Philos. Trans. (Royal Soc.) 140 626 The oscillations are nearly tautochronous.

1904 A. G. Webster Dynamics Particles & Rigid, Elastic, & Fluid Bodies v. 146 We may more generally inquire whether an isochronous or tautochronous vibration is necessarily harmonic.

1948 D. J. Struik Conc. Hist. Math. (ed. 2) vii. 166 Huygens discovered this property of the cycloid and used it in constructing tautochronous pendulum clocks.

2000 M. R. Matthews Time for Sci. Educ. vi. 124 Galileo had argued that the circle was the tautochronous curve.

This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022).

单词	tautochronous
释义	tautochronousadj. Brit. /ˈtɔːtəˌkrəʊnəs/, U.S. /ˈtɔdəˌkroʊnəs/, /ˈtɑdəˌkroʊnəs/ Origin: A borrowing from French, combined with an English element. Etymons: French tautochrone , -ous suffix. Etymology: < French tautochrone, adjective (1732: see tautochrone n.) + -ous suffix.Quot. 1771 translates the title of ‘Sur les courbes tautochrones’, a paper by J.-L. Lagrange in Mém. de l'Acad. Royale des Sci. & Belles-Lettres 1765 (1767) 364. Of a curve: that is a tautochrone. Also (of a body): that follows a tautochrone. ΘΚΠ the world > relative properties > number > geometry > curve > [adjective] curval1730 tautochronous1771 the world > relative properties > number > geometry > curve > [adjective] > describing curves used in physics catenarian curve1751 tautochronous1771 catenary1852 1771 Monthly Rev. 43 App. 524 On tautochronous curves. By M. De la Grange. 1850 Philos. Trans. (Royal Soc.) 140 626 The oscillations are nearly tautochronous. 1904 A. G. Webster Dynamics Particles & Rigid, Elastic, & Fluid Bodies v. 146 We may more generally inquire whether an isochronous or tautochronous vibration is necessarily harmonic. 1948 D. J. Struik Conc. Hist. Math. (ed. 2) vii. 166 Huygens discovered this property of the cycloid and used it in constructing tautochronous pendulum clocks. 2000 M. R. Matthews Time for Sci. Educ. vi. 124 Galileo had argued that the circle was the tautochronous curve. This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022). < adj.1771
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