First Known Use: circa 1570
Dictionary
dodecahedron
noun do·deca·he·dron \(ˌ)dō-ˌde-kə-ˈhē-drən\
plural do·deca·he·drons or do·deca·he·dra\-drə\
Definition of DODECAHEDRON
: a solid having 12 plane faces
— do·deca·he·dral \-drəl\ adjective
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Origin of DODECAHEDRON
Greek dōdekaedron, from dōdeka- + -edron -hedron
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