noun. An extremely hard, highly refractive crystalline form of carbon that is usually colorless and is used as a gemstone and in abrasives, cutting tools, and other applications.

noun. A piece of jewelry containing such a gemstone.

noun. A rhombus, particularly when oriented so that one of its diagonals is vertical and the other is horizontal.

noun. undefined

noun. A red, lozenge-shaped figure on certain playing cards.

noun. A playing card with this figure.

noun. The suit of cards represented by this figure.

noun. undefined

noun. The infield.

noun. The whole playing field.

adjective. Of or relating to a 60th or 75th anniversary.

transitive verb. To adorn with diamonds.

idiom. (diamond in the rough) One having exceptionally good qualities or the potential for greatness but lacking polish and refinement.

To set or decorate with diamonds.

noun. undefined

noun. Adamant; steel, or some imaginary substance of extreme hardness or impenetrability.

noun. A precious stone, distinguished from all others by being combustible and by its extreme hardness, as well as by its superior refractive and dispersive power.

noun. A geometrical figure bounded by four equal straight lines forming two acute and two obtuse angles; a rhomb; a lozenge; specifically, such a figure printed in red on a playing-card.

noun. A playing-card stamped with one or more red lozenge-shaped figures.

noun. A tool armed with a diamond, used for cutting glass.

noun. In base-ball, the square space inclosed within the four bases.

noun. In heraldry, the tincture black in blazoning by means of precious stones.

noun. The smallest size of printing-type in common use; a size smaller than pearl. Brilliant, very rarely used, is the only regular size below it.

noun. This line is printed in diamond.

noun. Mineral coal, as consisting, like diamonds, of carbon.

Resembling a diamond; consisting of diamonds; set with a diamond or diamonds: as, a diamond luster; a diamond necklace; a diamond ring.

Lozenge-shaped; rhombic: as, diamond window-panes.

Having rhomboid figures or markings: as, the diamond rattlesnake.

adjective. Resembling a diamond; made of, or abounding in, diamonds

noun. A precious stone or gem excelling in brilliancy and beautiful play of prismatic colors, and remarkable for extreme hardness.

noun. A geometrical figure, consisting of four equal straight lines, and having two of the interior angles acute and two obtuse; a rhombus; a lozenge.

noun. One of a suit of playing cards, stamped with the figure of a diamond.

noun. A pointed projection, like a four-sided pyramid, used for ornament in lines or groups.

noun. The infield; the square space, 90 feet on a side, having the bases at its angles.

noun. The smallest kind of type in English printing, except that called brilliant, which is seldom seen.

noun. coal; (Min.) See Carbonado.

noun. See Bristol stone, under Bristol.

noun. a large South American weevil (Entimus imperialis), remarkable for its splendid luster and colors, due to minute brilliant scales.

noun. a small Australian bird (Pardalotus punctatus, family Ampelidæ.). It is black, with white spots.

noun. a rod or tube the end of which is set with black diamonds; -- used for perforating hard substances, esp. for boring in rock.

noun. a small Australian sparrow, often kept in a cage. Its sides are black, with conspicuous white spots, and the rump is bright carmine.

noun. a groove of V-section in a roll.

noun. a small steel mortar used for pulverizing hard substances.

noun. a cutting tool whose point is diamond-shaped.

noun. a harmless snake of Australia (Morelia spilotes); the carpet snake.

noun. a small diamond set in a glazier's tool, for cutting glass.

noun. A glimmering glass-like mineral that is an allotrope of carbon in which each atom is surrounded by four others in the form of a tetrahedron.

noun. A gemstone made from this mineral.

noun. A ring containing a diamond.

noun. A very pale blue color/colour.

"-- The real identity of the two words explains Milton’s use of ‘diamond’ in _Paradise Lost_, b. 7; and also in that sublime passage in his _Apology for Smectymnuus_: “Then zeal, whose substance is ethereal, arming in complete _diamond_”."

Wikipedia article on diamonds  black diamond  brazilian diamond  bristol diamond  cape may diamonds  

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