retrusionn.

Brit.

/rᵻˈtruːʒn/, U.S.

/rəˈtruʒ(ə)n/,

/riˈtruʒ(ə)n/

Origin: A borrowing from Latin. Etymons: Latin retrusion-, retrusio.

Etymology: < post-classical Latin retrusion-, retrusio confinement (6th cent.), action of thrusting back (from 12th cent. in British sources) < classical Latin retrūs- , past participial stem of retrūdere retrude v. + -iō -ion suffix¹. Compare earlier retruse adj.

Now chiefly Dentistry.

The action of putting or moving something back; (Dentistry) backward movement or position of the jaw, esp. the mandible, or teeth. Also: an instance of this. Cf. protrusion n.

ΘΚΠ

the world > space > place > placing or fact of being placed in (a) position > [noun] > putting away or back

retrusion1653

1653 W. Harvey Anat. Exercitations v. 18 And Midwives also, by unction and retrusion of the extremity of the os sacrum, do facilitate womens labours.

1657 T. Reeve God's Plea for Nineveh 144 Oh..that all the sins of the Land without diminution, retrusion, substraction, could be bewailed in our lips with one National yell.

a1834 S. T. Coleridge Lit. Remains (1839) IV. 2 Being assumed to be eternal, in virtue of an endless remotion or retrusion of the constituent cause.

1872 Brit. Med. Jrnl. 28 Sept. 352/1 Instances of traumatic retrusion of mere segments of iris I have seen ere this.

1897 Trans. Illinois State Dental Soc. 178 The construction of an appliance for the retrusion or retraction of the incisors with a traction wire.

1937 Child Devel. 8 95 The deformity is characterized by a forward displacement of the upper front teeth and sometimes a retrusion of the lower teeth.

1991 R. Goldring Fossils in Field vii. 152 To distinguish a meniscate burrow as a retrusive Diplocraterion and not Teichichnus, the cut should be made perpendicular to the direction of retrusion.

2006 Arch. Oral Biol. 51 581 While the border movements of opening, protrusion and lateratrusion are often used to determine the mandibular functions, the movement of retrusion is rarely considered in the study of the human oro-facial functions.

This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022).

单词	retrusion
释义	retrusionn. Brit. /rᵻˈtruːʒn/, U.S. /rəˈtruʒ(ə)n/, /riˈtruʒ(ə)n/ Origin: A borrowing from Latin. Etymons: Latin retrusion-, retrusio. Etymology: < post-classical Latin retrusion-, retrusio confinement (6th cent.), action of thrusting back (from 12th cent. in British sources) < classical Latin retrūs- , past participial stem of retrūdere retrude v. + -iō -ion suffix¹. Compare earlier retruse adj. Now chiefly Dentistry. The action of putting or moving something back; (Dentistry) backward movement or position of the jaw, esp. the mandible, or teeth. Also: an instance of this. Cf. protrusion n. ΘΚΠ the world > space > place > placing or fact of being placed in (a) position > [noun] > putting away or back retrusion1653 1653 W. Harvey Anat. Exercitations v. 18 And Midwives also, by unction and retrusion of the extremity of the os sacrum, do facilitate womens labours. 1657 T. Reeve God's Plea for Nineveh 144 Oh..that all the sins of the Land without diminution, retrusion, substraction, could be bewailed in our lips with one National yell. a1834 S. T. Coleridge Lit. Remains (1839) IV. 2 Being assumed to be eternal, in virtue of an endless remotion or retrusion of the constituent cause. 1872 Brit. Med. Jrnl. 28 Sept. 352/1 Instances of traumatic retrusion of mere segments of iris I have seen ere this. 1897 Trans. Illinois State Dental Soc. 178 The construction of an appliance for the retrusion or retraction of the incisors with a traction wire. 1937 Child Devel. 8 95 The deformity is characterized by a forward displacement of the upper front teeth and sometimes a retrusion of the lower teeth. 1991 R. Goldring Fossils in Field vii. 152 To distinguish a meniscate burrow as a retrusive Diplocraterion and not Teichichnus, the cut should be made perpendicular to the direction of retrusion. 2006 Arch. Oral Biol. 51 581 While the border movements of opening, protrusion and lateratrusion are often used to determine the mandibular functions, the movement of retrusion is rarely considered in the study of the human oro-facial functions. This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022). < n.1653
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