| 单词 | polygon |
| 释义 | polygon —polygonal /peuh lig"euh nl/, adj. —polygonally, adv. /pol"ee gon'/, n. a figure, esp. a closed plane figure, having three or more, usually straight, sides. See illus. under heptagon, hexagon, octagon, pentagon, quadrilateral, triangle. [1560-70; < L polygonum < Gk polýgonon, n. use of neut. of polýgonos many-angled. See POLY-, -GON] |
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