Nonagon

[nɒnәgɒn]

解釋/意思:

(noun.) a nine-sided polygon.

錄入:里基--From WordNet

解釋/意思:

(n.) A figure or polygon having nine sides and nine angles.

霍雷肖整理

解釋/意思:

n. (math.) a plane figure having nine sides and nine angles.

校對:苏西