Rhombus

Pronunciation

• UK IPA: /ˈɹɒmbÉ™s/
• US IPA: /ˈɹɑːmbÉ™s/

Origin

From Latin rhombus, from Ancient Greek ῥόμβος (rhombos, "rhombus, spinning top"), from ῥέμβω (rhembo, "I turn around").

Full definition of rhombus

Noun

1. (zoology, now rare) Any of several flatfishes once considered part of the genus . from 16th c.
• 1638, Thomas Herbert, Some Yeares Travels, I:the greedy Tuberon or Shark arm'd with a double row of venemous teeth pursues them, directed by a little Rhombus, Musculus or pilot-fish that scuds to and fro to bring intelligence ....
2. (geometry) A parallelogram having all sides of equal length. from 16th c.

Synonyms

• (geometry) diamond (not in technical use), lozenge (if not square), rhomb

Related terms

• rhombic
• rhomboid