septagonaladj.

Brit.

/sɛpˈtaɡənl/,

/sɛpˈtaɡn̩l/, U.S.

/sɛpˈtæɡən(ə)l/

Origin: Formed within English, by derivation. Etymons: septagon n., -al suffix¹.

Etymology: < septagon n. + -al suffix¹. Compare earlier heptagonal adj.

Somewhat rare.

Having seven angles and seven straight sides; heptagonal. Also: heptagonal in form or cross-section.

ΚΠ

1797 G. Humphreys Museum Calonnianum 73 Septagonal plate of a fish of the Ostracion genus.

1887 Leeds Mercury 21 June 6/5 The new market is designed in the Flemish style, with septagonal pavilion tower at the south-west corner and octagonal tower at the north-east corner.

1914 Proc. Soc. Biblical Archæol. 36 275 Therefore the medal shows the circle of the earth surrounded by the septagonal figure that represents the course of the Seven Planets.

2004 Times 10 Jan. (Eye section) 10/2 He gets up and brings over to the table a septagonal box.

This entry has been updated (OED Third Edition, September 2020; most recently modified version published online March 2022).

单词	septagonal
释义	septagonaladj. Brit. /sɛpˈtaɡənl/, /sɛpˈtaɡn̩l/, U.S. /sɛpˈtæɡən(ə)l/ Origin: Formed within English, by derivation. Etymons: septagon n., -al suffix¹. Etymology: < septagon n. + -al suffix¹. Compare earlier heptagonal adj. Somewhat rare. Having seven angles and seven straight sides; heptagonal. Also: heptagonal in form or cross-section. ΚΠ 1797 G. Humphreys Museum Calonnianum 73 Septagonal plate of a fish of the Ostracion genus. 1887 Leeds Mercury 21 June 6/5 The new market is designed in the Flemish style, with septagonal pavilion tower at the south-west corner and octagonal tower at the north-east corner. 1914 Proc. Soc. Biblical Archæol. 36 275 Therefore the medal shows the circle of the earth surrounded by the septagonal figure that represents the course of the Seven Planets. 2004 Times 10 Jan. (Eye section) 10/2 He gets up and brings over to the table a septagonal box. This entry has been updated (OED Third Edition, September 2020; most recently modified version published online March 2022). < adj.1797
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