twintigvlak

== Dutch == === Etymology === Compound of twintig +‎ vlak. === Pronunciation === IPA(key): /ˈtʋɪn.təxˌvlɑk/ Hyphenation: twin‧tig‧vlak === Noun === twintigvlak n (plural twintigvlakken, no diminutive) icosahedron Synonym: icosaëder