rhombus
UK /ˈɹɒmbəs/ · US /ˈɹɑːmbəs/ noun
Forms rhombi rhombuses
- noun (geometry) A parallelogram having all sides of equal length.
- noun The rhombus diamond, as one of the suits seen in a deck of playing cards ( or ).
- noun In early Greek religion, an instrument whirled on the end of a string similar to a bullroarer.
- noun (zoology, now rare) Any of several flatfishes, including the brill and turbot, once considered part of the genus Rhombus, now in Scophthalmus.
- noun (zoology, archaic) Snails, now in genus Conus or family Conidae.
Synonyms
Etymology
Learned borrowing from Latin rhombus, from Ancient Greek ῥόμβος (rhómbos, “rhombus, spinning top”). Doublet of rhomb and rhumb.
Webster’s 1913
- noun Same as Rhomb, 1.
Etymology [L.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “rhombus”, CC BY-SA 4.0. Details