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Definitions
any polyhedron having twenty plane faces
Word origin
From Ancient Greek εἰκοσάεδρον (eikosáedron), from εἴκοσι (eíkosi, “twenty”) + ἕδρα (hédra, “face of a geometrical solid”). Equivalent to icosa- + -hedron.
Source: Wiktionary, CC BY-SA 4.0
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