TETRAKAIDECAHEDRON

ˌte.trəˌkīˌdekəˈhēdrən noun

Etymology: New Latin, from Late Greek tetrakaidekaedron, from Greek tetrakaideka fourteen (from tetra- + kai and + deka ten) + -edron -hedron — more at ten

: a 14-sided figure having 6 quadrilateral and 8 hexagonal faces