Standard Lemma guide

rhombohedron

noun · 2 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.

Sound

Pronunciation

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1

noun

Meaning 1

A prism with six faces, each a rhombus.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a parallelepiped bounded by six similar faces (either rhombuses or parallelograms)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: parallelepiped, parallelopiped, parallelepipedon, parallelopipedon, hexahedron

History

Etymology

From rhombo- + -hedron.

Across languages

Translations

10 source translations are retained for this English entry.

  • Catalan: romboedre — prism with six faces, each a rhombus
  • Catalan: rombòedre — prism with six faces, each a rhombus
  • Finnish: romboedri — prism with six faces, each a rhombus
  • French: rhomboèdre — prism with six faces, each a rhombus
  • German: Rhomboeder — prism with six faces, each a rhombus
  • Italian: romboedro — prism with six faces, each a rhombus
  • Polish: rombościan — prism with six faces, each a rhombus
  • Polish: romboedr — prism with six faces, each a rhombus
  • Russian: ромбоэдр (romboedr) — prism with six faces, each a rhombus
  • Spanish: romboedro — prism with six faces, each a rhombus