Lewis & Short

rhombus, i, m., = ῤόμβος.

  1. I. A magician’s circle, Prop. 2, 28, 35 (3, 25, 1); 3, 6, 26 (4, 5, 26); Ov. Am. 1, 8, 7; Mart. 9, 30, 9; 12, 57, 17.
  2. II. A kind of fish, flatfish, turbot, Plin. 9, 54, 79, § 169; Hor. S. 1, 2, 116; 2, 2, 42; 48; 49; 95; 2, 8, 30; id. Epod. 2, 50; Juv. 4, 39; 68; 119; 11, 121; Mart. 13, 81 al.
  3. III. A mathematical figure whose four sides and opposite angles are equal, a rhomb, Front. Expos. Form. p. 36 Goes.; Mart. Cap. 6, § 712.