16-cell

//sɪksˈtiːnˌsɛl// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A four-dimensional polytope, analogous to an octahedron, whose sixteen bounding facets are tetrahedra.

    "The remaining 8, as before, are the vertices of the complementary 16-cell (see Figure 9). In Figure 7, these 8 points have been blackened, but not joined, because the 16-cell has longer edges; diameters of octahedral facets of the 24-cell."

Example

More examples

"The remaining 8, as before, are the vertices of the complementary 16-cell (see Figure 9). In Figure 7, these 8 points have been blackened, but not joined, because the 16-cell has longer edges; diameters of octahedral facets of the 24-cell."

Etymology

From 16 + cell.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.