keystonedadj.

Brit.

/ˈkiːstəʊnd/, U.S.

/ˈkiˌstoʊnd/

Origin: Formed within English, by derivation. Etymons: keystone n.¹, -ed suffix².

Etymology: < keystone n.¹ + -ed suffix². Compare later keystone v.

1. Constructed or fitted with a keystone.

ΚΠ

1830 Gentleman's Mag. May 422/1 The keystoned arch is far more ancient than has been supposed.

1887 T. Hardy Woodlanders I. iv. 52 Under that keystoned doorway.

1956 Amer. Anthropologist 58 730 The flanking spires and the keystoned arch consecrated to the worship of the ‘true God’.

1996 F. Mayes Under Tuscan Sun (1997) 10 Every day we visit each keystoned medieval gate in the Etruscan walls.

a. Cinematography, Television, and Photography. Of an image: showing the keystone effect; distorted by keystoning.

ΚΠ

1949 A. H. Lytel TV Picture Projection & Enlargem. iv. 141 Why does the Philco system need a keystoned image?

1979 New Scientist 19 July 192/3 Although the consequent picture is still keystoned—the curves are at the edge furthest from the electron gun—the smaller height of the picture minimises this.

1991 Personal Computer World Feb. 106/4 You can have a quite badly ‘keystoned’ image—narrower at the bottom than at the top—and the mouse will still follow your red light.

2012 N. J. Medoff & E. J. Fink Portable Video (ed. 6) iv. 93 (caption) Shooting a building from a corner angle creates a keystoned image.

b. Electrical Engineering. Of a cable: having constituent strands made with flattened sides so that they fit together better inside the cable.

ΚΠ

1983 Cryogenics 23 285/2 One project..involved production of a 23-strand Keystoned cable designed for an experiment to be conducted by the Saclay/Hera quadrupole magnet project.

1998 H. Krauth in B. Seeber Handbk. Appl. Superconductivity I. b. viii. 412 The cable is slightly keystoned, i.e. made trapezoidal in order to better accommodate the geometry of the winding pack of a dipole magnet.

2010 S. Russenschuck Field Computation Accelerator Magnets xvii. 556 The resistances also vary across keystoned cables due to the different compaction on the thin and thick edges.

This entry has been updated (OED Third Edition, December 2012; most recently modified version published online March 2022).

单词	keystoned
释义	keystonedadj. Brit. /ˈkiːstəʊnd/, U.S. /ˈkiˌstoʊnd/ Origin: Formed within English, by derivation. Etymons: keystone n.¹, -ed suffix². Etymology: < keystone n.¹ + -ed suffix². Compare later keystone v. 1. Constructed or fitted with a keystone. ΚΠ 1830 Gentleman's Mag. May 422/1 The keystoned arch is far more ancient than has been supposed. 1887 T. Hardy Woodlanders I. iv. 52 Under that keystoned doorway. 1956 Amer. Anthropologist 58 730 The flanking spires and the keystoned arch consecrated to the worship of the ‘true God’. 1996 F. Mayes Under Tuscan Sun (1997) 10 Every day we visit each keystoned medieval gate in the Etruscan walls. 2. a. Cinematography, Television, and Photography. Of an image: showing the keystone effect; distorted by keystoning. ΚΠ 1949 A. H. Lytel TV Picture Projection & Enlargem. iv. 141 Why does the Philco system need a keystoned image? 1979 New Scientist 19 July 192/3 Although the consequent picture is still keystoned—the curves are at the edge furthest from the electron gun—the smaller height of the picture minimises this. 1991 Personal Computer World Feb. 106/4 You can have a quite badly ‘keystoned’ image—narrower at the bottom than at the top—and the mouse will still follow your red light. 2012 N. J. Medoff & E. J. Fink Portable Video (ed. 6) iv. 93 (caption) Shooting a building from a corner angle creates a keystoned image. b. Electrical Engineering. Of a cable: having constituent strands made with flattened sides so that they fit together better inside the cable. ΚΠ 1983 Cryogenics 23 285/2 One project..involved production of a 23-strand Keystoned cable designed for an experiment to be conducted by the Saclay/Hera quadrupole magnet project. 1998 H. Krauth in B. Seeber Handbk. Appl. Superconductivity I. b. viii. 412 The cable is slightly keystoned, i.e. made trapezoidal in order to better accommodate the geometry of the winding pack of a dipole magnet. 2010 S. Russenschuck Field Computation Accelerator Magnets xvii. 556 The resistances also vary across keystoned cables due to the different compaction on the thin and thick edges. This entry has been updated (OED Third Edition, December 2012; most recently modified version published online March 2022). < adj.1830
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