octagonaladj.

Brit.

/ɒkˈtaɡn̩(ə)l/, U.S.

/ɑkˈtæɡən(ə)l/

Forms: 1500s octogonall, 1600s–1700s octogonal, 1600s– octagonal.

Origin: Of multiple origins. Partly a borrowing from Latin,combined with an English element. Partly a borrowing from Greek, combined with an English element. Etymons: Latin octagōnon ; Greek ὀκτάγωνον , -al suffix¹.

Etymology: < classical Latin octagōnon, octōgōnon and its etymon ancient Greek ὀκτάγωνον octagon n. + -al suffix¹. Compare Middle French, French octogonal (1520), Italian ottagonale (mid 16th cent.).

Having the form of an octagon; eight-sided.

ΘΚΠ

the world > space > shape > angularity > specific angular shape > [adjective] > polygonal > octagonal

eight-squarea1552

octagonal1571

octagonian1598

octangle1613

octangular1649

octagon1679

octolateral1890

the world > relative properties > number > geometry > shape or figure > [adjective] > two-dimensional > octagonal

eight-squarea1552

octagonal1571

octagonian1598

octangle1613

octangular1649

octagon1679

1571 T. Digges in L. Digges's Geom. Pract.: Pantometria xxv. sig. Gg ij A figure..enuironed with 6 equiangle Octogonall and 8 equilater triangular playnes or bases.

1670 Philos. Trans. 1669 (Royal Soc.) 4 1126 In that place is to be a great Bason, Octogonal oval-wise, 200 fathoms long, and 150.fath. large.

1695 Philos. Trans. (Royal Soc.) 19 154 But now there is never an Inhabitant in the Place, nor House standing, but the Ruines of Houses, and an Octagonal Tower of a considerable height.

1745 Philos. Trans. 1744–5 (Royal Soc.) 43 185 It [sc. the seed of the Musk Scabious] resembles an octagonal vase with a scalloped brim.

1782 T. Warton Specimen Hist. Oxfordshire (1783) 4 The Gothic mouldings on the faces of its [sc. a font's] octogonal panes.

1815 J. Smith Panorama Sci. & Art I. 17 A..triangular, square, or octagonal bar.

1860 J. Tyndall Glaciers of Alps i. v. 40 A little octagonal building.

1899 Philos. Trans. (Royal Soc.) A. 192 501 The tube, T, was supported by a wider brass tube, provided at its upper end with three screws for centreing the flame tube, and fixed into an octagonal wooden block, D, 3·5 centims. thick and 20 centims. across.

1947 Philos. Trans. (Royal Soc.) B. 232 600 This [test object] was given an octagonal outline, so as to facilitate placing the gap in the C in one of eight positions.

1991 W. Perrie Roads that Move (BNC) 43 The table linen was fashionably pink, but the large octagonal black plates displayed the food wonderfully well.

Derivatives

ocˈtagonally adv. in an octagonal form.

ΘΚΠ

the world > relative properties > number > geometry > shape or figure > [adverb] > other two-dimensional form

concentrically1647

pentagonally1658

sexangularly1681

octagonally1753

concentricly1818

the world > space > shape > angularity > specific angular shape > [adverb] > polygon > octagon

octagonally1753

1753 M. Johnson Let. 21 May in Bibliotheca Topographica Britannica No. 2 (1782) 433 Our cockpit built octagonally.

1851 Ladies' Repository Sept. 337/2 A section of the trunk of an oak-tree, hewed and dressed off octagonally, some sixteen inches in diameter.

1996 Courier-Jrnl. 14 Mar. 7 An unusual, octagonally shaped staircase lit by an octagonal skylight.

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

单词	octagonal
释义	octagonaladj. Brit. /ɒkˈtaɡn̩(ə)l/, U.S. /ɑkˈtæɡən(ə)l/ Forms: 1500s octogonall, 1600s–1700s octogonal, 1600s– octagonal. Origin: Of multiple origins. Partly a borrowing from Latin,combined with an English element. Partly a borrowing from Greek, combined with an English element. Etymons: Latin octagōnon ; Greek ὀκτάγωνον , -al suffix¹. Etymology: < classical Latin octagōnon, octōgōnon and its etymon ancient Greek ὀκτάγωνον octagon n. + -al suffix¹. Compare Middle French, French octogonal (1520), Italian ottagonale (mid 16th cent.). Having the form of an octagon; eight-sided. ΘΚΠ the world > space > shape > angularity > specific angular shape > [adjective] > polygonal > octagonal eight-squarea1552 octagonal1571 octagonian1598 octangle1613 octangular1649 octagon1679 octolateral1890 the world > relative properties > number > geometry > shape or figure > [adjective] > two-dimensional > octagonal eight-squarea1552 octagonal1571 octagonian1598 octangle1613 octangular1649 octagon1679 1571 T. Digges in L. Digges's Geom. Pract.: Pantometria xxv. sig. Gg ij A figure..enuironed with 6 equiangle Octogonall and 8 equilater triangular playnes or bases. 1670 Philos. Trans. 1669 (Royal Soc.) 4 1126 In that place is to be a great Bason, Octogonal oval-wise, 200 fathoms long, and 150.fath. large. 1695 Philos. Trans. (Royal Soc.) 19 154 But now there is never an Inhabitant in the Place, nor House standing, but the Ruines of Houses, and an Octagonal Tower of a considerable height. 1745 Philos. Trans. 1744–5 (Royal Soc.) 43 185 It [sc. the seed of the Musk Scabious] resembles an octagonal vase with a scalloped brim. 1782 T. Warton Specimen Hist. Oxfordshire (1783) 4 The Gothic mouldings on the faces of its [sc. a font's] octogonal panes. 1815 J. Smith Panorama Sci. & Art I. 17 A..triangular, square, or octagonal bar. 1860 J. Tyndall Glaciers of Alps i. v. 40 A little octagonal building. 1899 Philos. Trans. (Royal Soc.) A. 192 501 The tube, T, was supported by a wider brass tube, provided at its upper end with three screws for centreing the flame tube, and fixed into an octagonal wooden block, D, 3·5 centims. thick and 20 centims. across. 1947 Philos. Trans. (Royal Soc.) B. 232 600 This [test object] was given an octagonal outline, so as to facilitate placing the gap in the C in one of eight positions. 1991 W. Perrie Roads that Move (BNC) 43 The table linen was fashionably pink, but the large octagonal black plates displayed the food wonderfully well. Derivatives ocˈtagonally adv. in an octagonal form. ΘΚΠ the world > relative properties > number > geometry > shape or figure > [adverb] > other two-dimensional form concentrically1647 pentagonally1658 sexangularly1681 octagonally1753 concentricly1818 the world > space > shape > angularity > specific angular shape > [adverb] > polygon > octagon octagonally1753 1753 M. Johnson Let. 21 May in Bibliotheca Topographica Britannica No. 2 (1782) 433 Our cockpit built octagonally. 1851 Ladies' Repository Sept. 337/2 A section of the trunk of an oak-tree, hewed and dressed off octagonally, some sixteen inches in diameter. 1996 Courier-Jrnl. 14 Mar. 7 An unusual, octagonally shaped staircase lit by an octagonal skylight. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022). < adj.1571
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