Definition of rhombohedron in English:

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rhombohedron

Pronunciation: /ˌrɒmbə(ʊ)ˈhiːdr(ə)n/

noun (plural rhombohedra /ˌrɒmbə(ʊ)ˈhiːdrə/ or rhombohedrons)

1A solid figure whose faces are six equal rhombuses.
1.1A rhombohedral crystal or other solid object.
Example sentences
  • He arrived at this from a study of calcite crystals of various habits and noted that the cleavage rhombohedra were always the same.
  • This Eagle mine is well known for dark spruce-green, rough-surfaced octahedra of fluorite associated with rhombohedra of rhodochrosite to 0.75 inch on edge.
  • These are nearly always accompanied by parallel overgrowth of several flattened rhombohedra aligned along each scalenohedron's c-axis, forming ‘pagodas’.

Origin

Mid 19th century: from rhombus + -hedron, on the pattern of words such as polyhedron.

For editors and proofreaders

Line breaks: rhombo|he¦dron

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