出典:Wiktionary
出典:『Wiktionary』 (2025/08/03 19:09 UTC 版)
From Ancient Greek εἰκοσάγωνος (eikoságōnos, “having twenty sides”), from εἴκοσι (eíkosi, “twenty”) + γωνία (gōnía, “angle”). Equivalent to icosa- + -gon.
icosagon (plural icosagons)
出典:Wikipedia