| 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. |