Standard Lemma guide

deltahedron

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

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Pronunciation

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1

noun

Meaning 1

A polyhedron whose faces are all equilateral triangles.

Definition source: English Wiktionary via Wiktextract

Topics: geometry, mathematics, sciences

Examples

  • There are infinitely many deltahedra, but only eight that are convex.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From delta (Greek letter) + -hedron referring to the triangular shape of the letter.