411 REFERENCE · Wiktionary
Boerdijk-Coxeter helix
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Named after H. S. M. Coxeter and A. H. Boerdijk.
Proper noun
1
en geometry A linear stacking of regular tetrahedra, arranged so that the edges of the complex that belong to only one tetrahedron form three intertwined helices.
en eponyms