subtentionn.

Brit.

/ˌsʌbˈtɛnʃn/,

/ˈsʌbˌtɛnʃn/, U.S.

/ˌsəbˈtɛn(t)ʃ(ə)n/

Origin: A borrowing from Latin, combined with an English element. Etymons: Latin subtent- , subtendere , -ion suffix¹.

Etymology: < classical Latin subtent-, past participial stem of subtendere subtend v. + -ion suffix¹. Compare post-classical Latin subtentio (1525 or earlier in medical context, translating ancient Greek ὑπότασις ). Compare slightly later subtense n.

Geometry.

= subtense n.In quot. 1610: a straight line in relation to a circle (such as a chord or a tangent).

ΘΚΠ

the world > relative properties > number > geometry > line > [noun] > chord

cord1551

chord1570

string1594

subtention1610

subtense1614

ordinate1676

inscript1695

supplemental chord1760

string-line1897

1610 A. Hopton Baculum Geodæticum vii. ii. 297 Any right lines being applied to a circle is called a subtention, which may be Sines, Tangents, or Secants.

1888 W. M. F. Petrie Season Egypt, 1887 vi. 28/1 The actual adjustments required to reconcile the observations, are..an average change in the angles of subtention of the measured bases of 1'2'' on each azimuth.

1915 H. Ommundsen & E. H. Robinson Rifles & Ammunition i. xiii. 211 Subtract the elevation of the intermediate range from the elevation of the full range, and multiply the remainder by 1.047 (the subtention of 1 in. of angle) and by the number of hundreds of yards.

2002 W. van Zwoll Hunter's Guide Accurate Shooting (2004) xiv. 162 You just have to do some shooting with your load at various ranges to check subtention and bullet impact relative to the bars.

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

单词	subtention
释义	subtentionn. Brit. /ˌsʌbˈtɛnʃn/, /ˈsʌbˌtɛnʃn/, U.S. /ˌsəbˈtɛn(t)ʃ(ə)n/ Origin: A borrowing from Latin, combined with an English element. Etymons: Latin subtent- , subtendere , -ion suffix¹. Etymology: < classical Latin subtent-, past participial stem of subtendere subtend v. + -ion suffix¹. Compare post-classical Latin subtentio (1525 or earlier in medical context, translating ancient Greek ὑπότασις ). Compare slightly later subtense n. Geometry. = subtense n.In quot. 1610: a straight line in relation to a circle (such as a chord or a tangent). ΘΚΠ the world > relative properties > number > geometry > line > [noun] > chord cord1551 chord1570 string1594 subtention1610 subtense1614 ordinate1676 inscript1695 supplemental chord1760 string-line1897 1610 A. Hopton Baculum Geodæticum vii. ii. 297 Any right lines being applied to a circle is called a subtention, which may be Sines, Tangents, or Secants. 1888 W. M. F. Petrie Season Egypt, 1887 vi. 28/1 The actual adjustments required to reconcile the observations, are..an average change in the angles of subtention of the measured bases of 1'2'' on each azimuth. 1915 H. Ommundsen & E. H. Robinson Rifles & Ammunition i. xiii. 211 Subtract the elevation of the intermediate range from the elevation of the full range, and multiply the remainder by 1.047 (the subtention of 1 in. of angle) and by the number of hundreds of yards. 2002 W. van Zwoll Hunter's Guide Accurate Shooting (2004) xiv. 162 You just have to do some shooting with your load at various ranges to check subtention and bullet impact relative to the bars. This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022). < n.1610
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