Definition of pentagon-dodecahedron in English:

pentagon-dodecahedron

noun

  • A dodecahedron which has twelve pentagonal faces but is not a regular dodecahedron; a solid figure or structure of this form.

Origin

Late 19th century; earliest use found in Nevil Story-Maskelyne (1823–1911), mineralogist. From pentagon + dodecahedron.

Pronunciation

pentagon-dodecahedron

/ˌpɛntəɡ(ə)nˌdəʊdɛkəˈhiːdr(ə)n/