dodecahedron
noun [ C ] mathematics specialized uk/ˌdəʊ.dek.əˈhiː.drən/ us/ˌdoʊ.dek.əˈhiː.drən/ dodecahedrons or dodecahedra uk/ˌdəʊ.dek.əˈhiː.drə/ us/ˌdoʊ.dek.əˈhiː.drə/
十二面体（由十二个等面积的五边形组成的多面体）
a solid shape that has twelve flat surfaces of equal size with five sides