nonagon
noun /ˈnɒnəɡən/
/ˈnɑːnəɡɑːn/
(geometry- a flat shape with nine straight sides and nine angles
九边形；九角形 词源mid 17th cent.: formed irregularly from Latin nonus ‘ninth’, on the pattern of words such as hexagon.
| 词汇 | nonagon |
| 释义 | nonagonnoun /ˈnɒnəɡən/ /ˈnɑːnəɡɑːn/ (geometry
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