Triskaidekahedron
"Triskaidekahedron" in a Sentence (3 examples)
The clock room was in the shape of a perfect triskaidekahedron, a thirteen-sided figure.
Many plant cells, for example, are shaped like triskaidekahedrons; that is, they are roughly round but have 13 flat sides.
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.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.