rhombus

Pronunciation

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Noun

Singular rhombus

Plural rhombuses or rhombi

A rhombus with angle marks

1. (countable) (geometry) A rhombus is shape that has two pairs parallel sides that are all the same length.

   All rhombuses are parallelograms and all squares are rhombuses.

Synonyms

• diamond
• lozenge
• rhomb

Related words

• rhomboid

See also

• parallelogram
• quadrilateral
• square