convexityn.

/kənˈvɛksɪti/

Etymology: < Latin convexitās, < convexus convex adj. and n.: compare modern French convexité.

1. The quality or condition of being convex; outward bulging.

ΘΚΠ

the world > space > shape > curvature > curved surface > [noun] > convexity

gibbosity1547

convexity1605

convexness1738

ventricoseness1840

ventricosity1868

1605 F. Bacon Of Aduancem. Learning i. sig. H2^v The finitenesse, or convexitie of Heauen.

1646 Sir T. Browne Pseudodoxia Epidemica vi. v. 292 By reason of the convexity of the Earth, the eye of man under the Æquator cannot discover both the poles.

1794 G. Adams Lect. Nat. & Exper. Philos. II. xv. 211 If the radius of convexity be less than the radius of concavity..the meniscus will have all the properties of a convex lens.

1880 E. White Certainty in Relig. 70 The cornea..is often untrue in its convexity.

2. A convex curve, surface, side, or part.

ΘΚΠ

the world > space > shape > curvature > curved surface > [noun] > convexity > convex curve or part

convexity1600

convex1680

back1850

outcurve1902

lens1975

1600 P. Holland in tr. Livy Rom. Hist. i. ii. 1348 note Much like a bow full bent: the convexitie or outward compasse whereof containeth a mile.

1680 J. Moxon Mech. Exercises I. xiii. 229 An Hollow Mandrel, made fit stifly to receive the convexity of the Globe in its concavity.

1827 T. Carlyle Richter in Edinb. Rev. June 177 This mirror is so twisted with convexities and concavities.

1831 D. Brewster Treat. Optics vi. 54 A double convex lens with equal convexities.

1872 S. W. Baker Nile Tributaries Abyssinia (new ed.) xii. 207 I had taken so steady an aim at the convexity at the root of the tree.

This entry has not yet been fully updated (first published 1893; most recently modified version published online June 2019).

单词	convexity
释义	convexityn. /kənˈvɛksɪti/ Etymology: < Latin convexitās, < convexus convex adj. and n.: compare modern French convexité. 1. The quality or condition of being convex; outward bulging. ΘΚΠ the world > space > shape > curvature > curved surface > [noun] > convexity gibbosity1547 convexity1605 convexness1738 ventricoseness1840 ventricosity1868 1605 F. Bacon Of Aduancem. Learning i. sig. H2^v The finitenesse, or convexitie of Heauen. View more context for this quotation 1646 Sir T. Browne Pseudodoxia Epidemica vi. v. 292 By reason of the convexity of the Earth, the eye of man under the Æquator cannot discover both the poles. View more context for this quotation 1794 G. Adams Lect. Nat. & Exper. Philos. II. xv. 211 If the radius of convexity be less than the radius of concavity..the meniscus will have all the properties of a convex lens. 1880 E. White Certainty in Relig. 70 The cornea..is often untrue in its convexity. 2. A convex curve, surface, side, or part. ΘΚΠ the world > space > shape > curvature > curved surface > [noun] > convexity > convex curve or part convexity1600 convex1680 back1850 outcurve1902 lens1975 1600 P. Holland in tr. Livy Rom. Hist. i. ii. 1348 note Much like a bow full bent: the convexitie or outward compasse whereof containeth a mile. 1680 J. Moxon Mech. Exercises I. xiii. 229 An Hollow Mandrel, made fit stifly to receive the convexity of the Globe in its concavity. 1827 T. Carlyle Richter in Edinb. Rev. June 177 This mirror is so twisted with convexities and concavities. 1831 D. Brewster Treat. Optics vi. 54 A double convex lens with equal convexities. 1872 S. W. Baker Nile Tributaries Abyssinia (new ed.) xii. 207 I had taken so steady an aim at the convexity at the root of the tree. This entry has not yet been fully updated (first published 1893; most recently modified version published online June 2019). < n.1600
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