semi-ellipsen.

Etymology: semi- prefix 2b(a).Previous versions of the OED give the stress as: ˌsemi-eˈllipse.

The half of an ellipse bisected by one of its diameters (usually the transverse).

ΘΚΠ

the world > relative properties > number > geometry > curve > [noun] > conic section > ellipse > half of

semi-ellipsisa1652

semi-ellipse1733

1733 J. Tull Horse-hoing Husbandry xxii. 162 The two Semi-Ellipses, which are on the Fore-Sides of their longest Axes or Diameters.

1841 H. Miller Old Red Sandstone (1887) viii. 150 The convex or sharpened edge is elongated into a semi-ellipse cut in the line of its shortest diameter.

a1878 G. G. Scott Lect. Mediæval Archit. (1879) I. 57 To make the section of the narrower vault an upright semi-ellipse.

Derivatives

ˌsemi-eˈllipsis n.

ΘΚΠ

the world > relative properties > number > geometry > curve > [noun] > conic section > ellipse > half of

semi-ellipsisa1652

semi-ellipse1733

a1652 S. Foster Elliptical Horologiography (1654) 39 Describe a Semiellipsis to your own Latitude, whose longest Radius let be M O.

1768 J. Ferguson in Philos. Trans. 1767 (Royal Soc.) 57 392 Right lines..shall cut the semi-ellipsis in those points through which the hour-lines must be drawn.

semi-ellipˈsoidal adj. of the form of half an ellipsoid.

ΘΚΠ

the world > relative properties > number > geometry > curve > [adjective] > of conic section > elliptical > semi-elliptical

semi-oval1700

semi-elliptical1763

semi-ovaloida1836

semi-ellipsoidal1845

semi-elliptic1900

1845 J. Phillips & C. G. B. Daubeny Geol. in Encycl. Metrop. VI. 703/1 The Yorkshire flagstone is..used, to make curb stones of two feet in height, the laminæ being placed vertically, and the block worked above to a semi-ellipsoidal figure.

ˌsemi-eˈlliptic adj.

ΘΚΠ

the world > relative properties > number > geometry > curve > [adjective] > of conic section > elliptical > semi-elliptical

semi-oval1700

semi-elliptical1763

semi-ovaloida1836

semi-ellipsoidal1845

semi-elliptic1900

1900 B. D. Jackson Gloss. Bot. Terms Semielliptic, half-elliptic, the division being longitudinal.

1907 Westm. Gaz. 11 Nov. 6/3 The suspension of the rear part of the chassis is now by three-quarter elliptical springs instead of semi-elliptics.

semi-eˈlliptical adj.

ΘΚΠ

the world > relative properties > number > geometry > curve > [adjective] > of conic section > elliptical > semi-elliptical

semi-oval1700

semi-elliptical1763

semi-ovaloida1836

semi-ellipsoidal1845

semi-elliptic1900

1763 Ann. Reg. 1762 75 A bright semicircular or semielliptical arch over the moon.

1841 H. Miller Old Red Sandstone (1887) viii. 166 They remind one..of pieces of ancient iron armour, fitted into semi-elliptical scales.

1866 R. Tate Plain & Easy Acct. Mollusks Great Brit. iv. 128 The aperture is oblique, semielliptical, thin.

This entry has not yet been fully updated (first published 1911; most recently modified version published online June 2019).

单词	semi-ellipse
释义	semi-ellipsen. Etymology: semi- prefix 2b(a).Previous versions of the OED give the stress as: ˌsemi-eˈllipse. The half of an ellipse bisected by one of its diameters (usually the transverse). ΘΚΠ the world > relative properties > number > geometry > curve > [noun] > conic section > ellipse > half of semi-ellipsisa1652 semi-ellipse1733 1733 J. Tull Horse-hoing Husbandry xxii. 162 The two Semi-Ellipses, which are on the Fore-Sides of their longest Axes or Diameters. 1841 H. Miller Old Red Sandstone (1887) viii. 150 The convex or sharpened edge is elongated into a semi-ellipse cut in the line of its shortest diameter. a1878 G. G. Scott Lect. Mediæval Archit. (1879) I. 57 To make the section of the narrower vault an upright semi-ellipse. Derivatives ˌsemi-eˈllipsis n. ΘΚΠ the world > relative properties > number > geometry > curve > [noun] > conic section > ellipse > half of semi-ellipsisa1652 semi-ellipse1733 a1652 S. Foster Elliptical Horologiography (1654) 39 Describe a Semiellipsis to your own Latitude, whose longest Radius let be M O. 1768 J. Ferguson in Philos. Trans. 1767 (Royal Soc.) 57 392 Right lines..shall cut the semi-ellipsis in those points through which the hour-lines must be drawn. semi-ellipˈsoidal adj. of the form of half an ellipsoid. ΘΚΠ the world > relative properties > number > geometry > curve > [adjective] > of conic section > elliptical > semi-elliptical semi-oval1700 semi-elliptical1763 semi-ovaloida1836 semi-ellipsoidal1845 semi-elliptic1900 1845 J. Phillips & C. G. B. Daubeny Geol. in Encycl. Metrop. VI. 703/1 The Yorkshire flagstone is..used, to make curb stones of two feet in height, the laminæ being placed vertically, and the block worked above to a semi-ellipsoidal figure. ˌsemi-eˈlliptic adj. ΘΚΠ the world > relative properties > number > geometry > curve > [adjective] > of conic section > elliptical > semi-elliptical semi-oval1700 semi-elliptical1763 semi-ovaloida1836 semi-ellipsoidal1845 semi-elliptic1900 1900 B. D. Jackson Gloss. Bot. Terms Semielliptic, half-elliptic, the division being longitudinal. 1907 Westm. Gaz. 11 Nov. 6/3 The suspension of the rear part of the chassis is now by three-quarter elliptical springs instead of semi-elliptics. semi-eˈlliptical adj. ΘΚΠ the world > relative properties > number > geometry > curve > [adjective] > of conic section > elliptical > semi-elliptical semi-oval1700 semi-elliptical1763 semi-ovaloida1836 semi-ellipsoidal1845 semi-elliptic1900 1763 Ann. Reg. 1762 75 A bright semicircular or semielliptical arch over the moon. 1841 H. Miller Old Red Sandstone (1887) viii. 166 They remind one..of pieces of ancient iron armour, fitted into semi-elliptical scales. 1866 R. Tate Plain & Easy Acct. Mollusks Great Brit. iv. 128 The aperture is oblique, semielliptical, thin. This entry has not yet been fully updated (first published 1911; most recently modified version published online June 2019). < n.a1652
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