单词 | dodecagon |
释义 | dodecagon Geom.|dəʊˈdɛkəgən| [ad. Gr. δωδεκάγωνον, f. δώδεκα twelve + -γωνος angled, γωνία angle; cf. F. dodécagone (1690 in Hatz.-Darm.).] A plane figure having twelve sides and twelve angles. regular dodecagon, one that has all its sides and all its angles equal.
1658Phillips, Dodecagon (Greek), a Geometrical figure of 12 Angles. 1861Thornbury Turner (1862) I. 51 He draws trees when he should draw dodecagons. Hence dodeˈcagonal a., of or pertaining to a dodecagon; twelve-sided.
1851–60in Mayne Expos. Lex. |

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