• (British) IPA: /ˈɹɒmbəs/
• (America) IPA: /ˈɹɑːmbəs/

rhombus

1. (geometry) A parallelogram having all sides of equal length. [from 16th c.]
   1. The rhombus diamond, as one of the suits seen in a deck of playing cards ( or ).
2. In early Greek religion, an instrument whirled on the end of a string similar to a bullroarer.
3. (zoology, now rare) Any of several flatfishes, including the brill and turbot, once considered part of the genus Rhombus, now in Scophthalmus. [from 16th c.]
   • 1638, Thomas Herbert, Some Yeares Travels, section 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 [...].

4. (zoology, archaic) Snails, now in genus Conus or family Conidae.

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

• French: losange, rhombus
• German: Rhombus, Raute
• Italian: rombo
• Portuguese: losango
• Russian: ромб
• Spanish: rombo

1. (obsolete) A taxonomic genus within the order Pleuronectiformes – certain flatfish, now in Scophthalmus^{(Please check if this is already defined at target. Replace taxlink]] with taxfmt]] if already defined. Add nomul=1 if not defined.)} and other related genera.
2. Certain cone snails
   1. Conidae
   2. A taxonomic subgenus within the family Conidae – Conus (Stephanoconus)^{(Please check if this is already defined at target. Replace taxlink]] with taxfmt]] if already defined. Add nomul=1 if not defined.)}.