recurvationn.
/ˌriːkəːˈveɪʃn/, U.S. /ˌrikərˈveɪʃ(ə)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. 44v/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).
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n.1598