Black diamond

Black diamond
Diamond Di"a*mond (?; 277), n. [OE. diamaund, diamaunt, F. diamant, corrupted, fr. L. adamas, the hardest iron, steel, diamond, Gr. ?. Perh. the corruption is due to the influence of Gr. ? transparent. See {Adamant}, {Tame}.] 1. A precious stone or gem excelling in brilliancy and beautiful play of prismatic colors, and remarkable for extreme hardness. [1913 Webster]

Note: The diamond is native carbon in isometric crystals, often octahedrons with rounded edges. It is usually colorless, but some are yellow, green, blue, and even black. It is the hardest substance known. The diamond as found in nature (called a rough diamond) is cut, for use in jewelry, into various forms with many reflecting faces, or facets, by which its brilliancy is much increased. See {Brilliant}, {Rose}. Diamonds are said to be of the first water when very transparent, and of the second or third water as the transparency decreases. [1913 Webster]

2. A geometrical figure, consisting of four equal straight lines, and having two of the interior angles acute and two obtuse; a rhombus; a lozenge. [1913 Webster]

3. One of a suit of playing cards, stamped with the figure of a diamond. [1913 Webster]

4. (Arch.) A pointed projection, like a four-sided pyramid, used for ornament in lines or groups. [1913 Webster]

5. (Baseball) The infield; the square space, 90 feet on a side, having the bases at its angles. [1913 Webster]

6. (Print.) The smallest kind of type in English printing, except that called brilliant, which is seldom seen. [1913 Webster]

Note: [hand] This line is printed in the type called {Diamond}. [1913 Webster]

{Black diamond}, coal; (Min.) See {Carbonado}.

{Bristol diamond}. See {Bristol stone}, under {Bristol}.

{Diamond beetle} (Zo["o]l.), a large South American weevil ({Entimus imperialis}), remarkable for its splendid luster and colors, due to minute brilliant scales.

{Diamond bird} (Zo["o]l.), a small Australian bird ({Pardalotus punctatus}, family {Ampelid[ae]}.). It is black, with white spots.

{Diamond drill} (Engin.), a rod or tube the end of which is set with black diamonds; -- used for perforating hard substances, esp. for boring in rock.

{Diamond finch} (Zo["o]l.), a small Australian sparrow, often kept in a cage. Its sides are black, with conspicuous white spots, and the rump is bright carmine.

{Diamond groove} (Iron Working), a groove of V-section in a roll.

{Diamond mortar} (Chem.), a small steel mortar used for pulverizing hard substances.

{Diamond-point tool}, a cutting tool whose point is diamond-shaped.

{Diamond snake} (Zo["o]l.), a harmless snake of Australia ({Morelia spilotes}); the carpet snake.

{Glazier's diamond}, a small diamond set in a glazier's tool, for cutting glass. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

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  • Black diamond — Black Black (bl[a^]k), a. [OE. blak, AS. bl[ae]c; akin to Icel. blakkr dark, swarthy, Sw. bl[ a]ck ink, Dan. bl[ae]k, OHG. blach, LG. & D. blaken to burn with a black smoke. Not akin to AS. bl[=a]c, E. bleak pallid. [root]98.] 1. Destitute of… …   The Collaborative International Dictionary of English

  • black diamond — n. 1. [also pl.] COAL (n. 1) 2. CARBONADO (n. 2) …   English World dictionary

  • Black Diamond — 1 Original name in latin Black Diamond Name in other language State code CA Continent/City America/Edmonton longitude 50.70011 latitude 114.2353 altitude 1167 Population 3663 Date 2006 01 22 2 Original name in latin Black Diamond Name in other… …   Cities with a population over 1000 database

  • black diamond — n. first sergeant (named for the black diamond in the rank insignia in the U.S. Army) …   English slang

  • black diamond — black or gray industrial diamond also called framesite bort; anthracite or hard coal …   Eponyms, nicknames, and geographical games

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