obtuse-angledadj.

Brit.

/əbˈtjuːsˌaŋɡld/, U.S.

/əbˈt(j)usˌæŋɡəld/,

/ɑbˈt(j)usˌæŋɡəld/

Origin: Formed within English, by compounding; modelled on a Latin lexical item. Etymons: obtuse adj., angled adj.

Etymology: < obtuse adj. + angled adj., after post-classical Latin obtusangulus (see obtusangulous adj.). Compare later obtusangular adj., obtusangulous adj., and obtuse angular adj. Compare also acute-angled adj.

Having an obtuse angle or angles.

ΘΚΠ

the world > relative properties > number > geometry > angle > [adjective] > obtuse angled

blunt-angled1551

obtusiangle?a1560

obtuse1570

obtuse-angled1570

amblygon1605

amblygonal1618

obtusangulous1680

amblygonial1704

obtusangular1706

amblygonous1728

obtuse angular1782

the world > space > shape > angularity > [adjective] > constituting an angle > obtuse > characterized by obtuse angles

obtuse-angled1570

amblygon1605

amblygonal1618

obtusangulous1680

amblygonial1704

obtusangular1706

amblygonous1728

obtuse angular1782

1570 H. Billingsley tr. Euclid Elements Geom. i. f. 4^v An ambligonium or an obtuse angled triangle, is a triangle which hath an obtuse angle.

1660 tr. I. Barrow Euclide's Elements i. 4 An Amblygonium, or obtuse-angled Triangle, is that which hath one angle obtuse.

1706 Phillips's New World of Words (new ed.) Obtuse-angled Cone.

1805 Philos. Trans. (Royal Soc.) 95 205 The capitulum of the columella in birds..is joined to an obtuse-angled triangular plate of cartilage.

1852 Philos. Trans. (Royal Soc.) 142 330 Let ADG be a parabola, F its focus, O being the centre of the sphere which touches the plane of the parabola at F, and being also the vertex of the obtuse-angled cone.

1943 Jrnl. Royal Anthropol. Inst. 73 49/1 In general battle axes were, as the name implies, weapons, if often ceremonial;..their frequently obtuse-angled axe-ends would have rendered them inefficient as cutting tools.

1972 M. Kline Math. Thought v. 108 The obtuse-angled conoid is one branch of a hyperboloid of revolution.

This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).

单词	obtuse-angled
释义	obtuse-angledadj. Brit. /əbˈtjuːsˌaŋɡld/, U.S. /əbˈt(j)usˌæŋɡəld/, /ɑbˈt(j)usˌæŋɡəld/ Origin: Formed within English, by compounding; modelled on a Latin lexical item. Etymons: obtuse adj., angled adj. Etymology: < obtuse adj. + angled adj., after post-classical Latin obtusangulus (see obtusangulous adj.). Compare later obtusangular adj., obtusangulous adj., and obtuse angular adj. Compare also acute-angled adj. Having an obtuse angle or angles. ΘΚΠ the world > relative properties > number > geometry > angle > [adjective] > obtuse angled blunt-angled1551 obtusiangle?a1560 obtuse1570 obtuse-angled1570 amblygon1605 amblygonal1618 obtusangulous1680 amblygonial1704 obtusangular1706 amblygonous1728 obtuse angular1782 the world > space > shape > angularity > [adjective] > constituting an angle > obtuse > characterized by obtuse angles obtuse-angled1570 amblygon1605 amblygonal1618 obtusangulous1680 amblygonial1704 obtusangular1706 amblygonous1728 obtuse angular1782 1570 H. Billingsley tr. Euclid Elements Geom. i. f. 4^v An ambligonium or an obtuse angled triangle, is a triangle which hath an obtuse angle. 1660 tr. I. Barrow Euclide's Elements i. 4 An Amblygonium, or obtuse-angled Triangle, is that which hath one angle obtuse. 1706 Phillips's New World of Words (new ed.) Obtuse-angled Cone. 1805 Philos. Trans. (Royal Soc.) 95 205 The capitulum of the columella in birds..is joined to an obtuse-angled triangular plate of cartilage. 1852 Philos. Trans. (Royal Soc.) 142 330 Let ADG be a parabola, F its focus, O being the centre of the sphere which touches the plane of the parabola at F, and being also the vertex of the obtuse-angled cone. 1943 Jrnl. Royal Anthropol. Inst. 73 49/1 In general battle axes were, as the name implies, weapons, if often ceremonial;..their frequently obtuse-angled axe-ends would have rendered them inefficient as cutting tools. 1972 M. Kline Math. Thought v. 108 The obtuse-angled conoid is one branch of a hyperboloid of revolution. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022). < adj.1570
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