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词汇 octagon
释义

octagon

Word family  nounoctachordoctagonoctahedriteoctahedronoctameterOctandriaoctapodyoctastichadjectiveoctachordaloctagonaloctahedraloctamerousoctandrianoctandrousoctangularoctapodicoctastichousoctastrophicoctastyleoctavalentadverboctagonally
Related topics: Shapes, patterns, Maths
oc·ta·gon /ˈɒktəɡən $ ˈɑːktəɡɑːn/ noun [countableC]  
CFa flat shape with eight sides and eight angles 八边形,八角形 →5 see picture at 见图 shape1
—octagonal /ɒkˈtæɡənəl $ ɑːk-/ adjectiveadj
 an octagonal tower
八角形塔
Examples from the Corpus
Origin octagon
(1500-1600) Latin octagonum, from Greek, from okta- “eight” + -gonon “-gon”
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