recurvationn.

Brit.

/ˌriːkəːˈveɪʃn/, U.S.

/ˌrikərˈveɪʃ(ə)n/

Forms: 1500s recurvatione, 1600s– recurvation.

Origin: Formed within English, by derivation. Etymons: recurvate v., -ion suffix¹.

Etymology: < recurvate v. + -ion suffix¹; compare -ation suffix. Compare earlier recurvate adj., and also recurve v., recurved adj. Compare also earlier curvation n.

Science.

The fact or state of being bent or curved backwards. Also: an instance of this; a backward bend or curve. Cf. recurvature n.

ΘΚΠ

the world > space > shape > curvature > types of curvature > [noun] > backwards

reflection?a1425

reversement1572

recurvation1598

recurvity1669

returning1676

recurvature1729

retroflexion1782

reflexure1840

recurving1845

1598 A. M. tr. J. Guillemeau Frenche Chirurg. f. 44^v/1 In Fractures, in dislocations, recurvatione [Fr. entorsemens, Du. verdraeyingen] of Ioynctes.

1599 A. M. tr. O. Gaebelkhover Bk. Physicke 114/1 Rubbe therwith the recurvatione of the backe.

1646 Sir T. Browne Pseudodoxia Epidemica 172 By a Serpentine and Trumpet recurvation it ascendeth againe into the neck.

1654 W. Charleton Physiologia Epicuro-Gassendo-Charltoniana iii. xv. 345 We shall see him dart out a long and slender tongue, with a small recurvation at the tip, and birdlimed with a certain tenacious and inviscating moisture.

1776 tr. G. van Swieten Comm. Aphorisms Boerhaave (new ed.) XII. 378 A recurvation of the nails, and a tumour of the abdomen.

1795 Med. Commentaries for 1794 Decade 2nd 10 304 A recurvation of the spine.

1822 J. M. Good Study Med. IV. 326 Recurvation of the spine, or posterior crookedness.

1866 J. S. Bowerbank Monogr. Brit. Spongiadæ II. 57 The recurvations of the furcations of the apices of the radii.

1879 Philos. Trans. (Royal Soc.) 168 44 Leaves green, frequently convex from the recurvation of the margin.

1939 Hammond Times (Indiana) 5 Mar. 6 A constant backward recurvation of the knee is maintained.

1984 Canad. Jrnl. Bot. 62 2779 Female flowers are drawn underwater by pedicel recurvation.

2006 Pediatric Neurol. 35 367/2 At approximately 30 weeks gestation, recurvation and hyperextension of the neck in the breech position was identified.

This entry has been updated (OED Third Edition, June 2009; most recently modified version published online March 2022).

单词	recurvation
释义	recurvationn. Brit. /ˌriːkəːˈveɪʃn/, U.S. /ˌrikərˈveɪʃ(ə)n/ Forms: 1500s recurvatione, 1600s– recurvation. Origin: Formed within English, by derivation. Etymons: recurvate v., -ion suffix¹. Etymology: < recurvate v. + -ion suffix¹; compare -ation suffix. Compare earlier recurvate adj., and also recurve v., recurved adj. Compare also earlier curvation n. Science. The fact or state of being bent or curved backwards. Also: an instance of this; a backward bend or curve. Cf. recurvature n. ΘΚΠ the world > space > shape > curvature > types of curvature > [noun] > backwards reflection?a1425 reversement1572 recurvation1598 recurvity1669 returning1676 recurvature1729 retroflexion1782 reflexure1840 recurving1845 1598 A. M. tr. J. Guillemeau Frenche Chirurg. f. 44^v/1 In Fractures, in dislocations, recurvatione [Fr. entorsemens, Du. verdraeyingen] of Ioynctes. 1599 A. M. tr. O. Gaebelkhover Bk. Physicke 114/1 Rubbe therwith the recurvatione of the backe. 1646 Sir T. Browne Pseudodoxia Epidemica 172 By a Serpentine and Trumpet recurvation it ascendeth againe into the neck. View more context for this quotation 1654 W. Charleton Physiologia Epicuro-Gassendo-Charltoniana iii. xv. 345 We shall see him dart out a long and slender tongue, with a small recurvation at the tip, and birdlimed with a certain tenacious and inviscating moisture. 1776 tr. G. van Swieten Comm. Aphorisms Boerhaave (new ed.) XII. 378 A recurvation of the nails, and a tumour of the abdomen. 1795 Med. Commentaries for 1794 Decade 2nd 10 304 A recurvation of the spine. 1822 J. M. Good Study Med. IV. 326 Recurvation of the spine, or posterior crookedness. 1866 J. S. Bowerbank Monogr. Brit. Spongiadæ II. 57 The recurvations of the furcations of the apices of the radii. 1879 Philos. Trans. (Royal Soc.) 168 44 Leaves green, frequently convex from the recurvation of the margin. 1939 Hammond Times (Indiana) 5 Mar. 6 A constant backward recurvation of the knee is maintained. 1984 Canad. Jrnl. Bot. 62 2779 Female flowers are drawn underwater by pedicel recurvation. 2006 Pediatric Neurol. 35 367/2 At approximately 30 weeks gestation, recurvation and hyperextension of the neck in the breech position was identified. This entry has been updated (OED Third Edition, June 2009; most recently modified version published online March 2022). < n.1598
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