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单词 undecagon
释义 undecagon Geom.|ʌnˈdɛkəgən|
[Irreg. f. L. undec-im eleven, after decagon (cf. hendecagon). So Sp. and Pg. undecágono, F. ondécagone.]
A plane figure having eleven sides and angles.
1728Chambers Cycl., Undecagon, is a regular Polygon of eleven Sides.1798Hutton Course Math. (1806) I. 271. 1879 Cassell's Techn. Educ. I. 251.
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