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US /rɑːm/ UK /rɒm/

Meanings

  1. 1
  2. 2
    noun

    a rhombohedron or a face having the shape of a rhombus

    Each crystal rhomb met the next at a sharply defined edge.

Thesaurus

Synonyms
1 noun · a rhombus; a parallelogram... rhombusdiamond
2 noun · a rhombohedron or a face... rhombohedron
Word family
Forms rhombs
Derived forms rhombicrhomboidrhombencephalon
Related forms parallelogramquadrilateralrhumb

Etymology

Borrowed through French rhombe and Latin rhombus from Greek rhombos, a spinning object or circular motion. Geometry applied the name to the equal-sided parallelogram. Rhomb is a shorter doublet of rhombus and is also used for a rhombohedral crystal form.

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