osiemnastościan

== Polish == === Etymology === From osiemnaście +‎ -o- +‎ ściana. === Pronunciation === IPA(key): /ɔ.ɕɛm.nasˈtɔɕ.t͡ɕan/ Rhymes: -ɔɕt͡ɕan Syllabification: o‧siem‧nas‧toś‧cian === Noun === osiemnastościan m inan (geometry, rare) octadecahedron ==== Declension ====