triskaidekahedron

English

Etymology

From triskaideka- +‎ -hedron.

Noun

triskaidekahedron (plural triskaidekahedrons)

1. Alternative spelling of triskaidecahedron
   • 1977, R. A. Lafferty, Apocalypses:

     The clock room was in the shape of a perfect triskaidekahedron, a thirteen-sided figure.

   • 1989, Modern Biology, Holt, Rinehart and Winston, →ISBN, page 65:

     Many plant cells, for example, are shaped like triskaidekahedrons; that is, they are roughly round but have 13 flat sides.

   • 2013, D.L.C. Maclachlan, The Enigma of Perception, McGill-Queen’s University Press, →ISBN, page 55:

     No doubt you are now acquiring the concept of a regular triskaidekahedron, or plane figure with thirteen equal sides, because I have just used the word.