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    heptagon

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    heptagon

    Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++
    Related topics: Shapes, patterns, Maths
    hep·ta·gon /ˈheptəɡən $ -ɡɑːn/ noun [countable]  CFa shape with seven straight sides 七边形，七角形 → polygon —heptagonal /hepˈtæɡənəl/ adjective    Origin heptagon (1500-1600) Greek heptagonos, from hepta “seven” + gonia “angle”
    hep·ta·gon nounChineseSyllable


    heptagon
    hep‧ta‧gon /ˈheptəɡən $ -ɡɑːn/ noun [countable]
     Date: 1500-1600
     Language: Greek
     Origin: heptagonos, from hepta 'seven' + gonia 'angle'
    a shape with seven straight sides ⇨ polygon
    —heptagonal /hepˈtæɡənəl/ adjective


    hepta·gonBrE /ˈheptəɡən/ 🔊NAmE /ˈheptəɡɑːn/ 🔊 noun (geometry 几何) a flat shape with seven straight sides and seven angles 七边形；七角形▸ hept·agon·al BrE /hepˈtæɡənl/ 🔊NAmE /hepˈtæɡənl/ 🔊 adjective