point saillantn.

Brit.

/ˌpwã saˈjɒ̃/, U.S.

/ˌpwɑn(t) seɪˈjɑn(t)/

Origin: A borrowing from French. Etymon: French point saillant.

Etymology: < French point saillant starting point (late 17th cent., in specific sense ‘the heart’: see salient point at salient adj. 3a).

Geometry. rare.

A point at which two branches of a curve meet and terminate, and at which they do not have a common tangent.

ΚΠ

1852 I. Todhunter Diff. Calculus xxii. 281 A point saillant is a point at which two branches of a curve meet and stop without having a common tangent.

1958 Van Nostrand's Sci. Encycl. (ed. 3) 1504 Salient point or point saillant, two branches of the curve end without a continuous derivative, thus without a common tangent.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	point saillant
释义	point saillantn. Brit. /ˌpwã saˈjɒ̃/, U.S. /ˌpwɑn(t) seɪˈjɑn(t)/ Origin: A borrowing from French. Etymon: French point saillant. Etymology: < French point saillant starting point (late 17th cent., in specific sense ‘the heart’: see salient point at salient adj. 3a). Geometry. rare. A point at which two branches of a curve meet and terminate, and at which they do not have a common tangent. ΚΠ 1852 I. Todhunter Diff. Calculus xxii. 281 A point saillant is a point at which two branches of a curve meet and stop without having a common tangent. 1958 Van Nostrand's Sci. Encycl. (ed. 3) 1504 Salient point or point saillant, two branches of the curve end without a continuous derivative, thus without a common tangent. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1852
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