The Collaborative International Dictionary of English v.0.48:

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]

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

   Bristol diamond. See Bristol stone, under Bristol.

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

   Diamond bird (Zool.), 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 (Zool.), 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 (Zool.), 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 v.0.48:

Black \Black\ (bl[a^]k), a. [OE. blak, AS. bl[ae]c; akin to
   Icel. blakkr dark, swarthy, Sw. bl[aum]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 light, or incapable of reflecting it; of the
      color of soot or coal; of the darkest or a very dark
      color, the opposite of white; characterized by such a
      color; as, black cloth; black hair or eyes.
      [1913 Webster]

            O night, with hue so black!           --Shak.
      [1913 Webster]

   2. In a less literal sense: Enveloped or shrouded in
      darkness; very dark or gloomy; as, a black night; the
      heavens black with clouds.
      [1913 Webster]

            I spy a black, suspicious, threatening cloud.
                                                  --Shak.
      [1913 Webster]

   3. Fig.: Dismal, gloomy, or forbidding, like darkness;
      destitute of moral light or goodness; atrociously wicked;
      cruel; mournful; calamitous; horrible. "This day's black
      fate." "Black villainy." "Arise, black vengeance." "Black
      day." "Black despair." --Shak.
      [1913 Webster]

   4. Expressing menace, or discontent; threatening; sullen;
      foreboding; as, to regard one with black looks.
      [1913 Webster]

   Note: Black is often used in self-explaining compound words;
         as, black-eyed, black-faced, black-haired,
         black-visaged.
         [1913 Webster]

   Black act, the English statute 9 George I, which makes it a
      felony to appear armed in any park or warren, etc., or to
      hunt or steal deer, etc., with the face blackened or
      disguised. Subsequent acts inflicting heavy penalties for
      malicious injuries to cattle and machinery have been
      called black acts.

   Black angel (Zool.), a fish of the West Indies and Florida
      (Holacanthus tricolor), with the head and tail yellow,
      and the middle of the body black.

   Black antimony (Chem.), the black sulphide of antimony,
      Sb2S3, used in pyrotechnics, etc.

   Black bear (Zool.), the common American bear (Ursus
      Americanus).

   Black beast. See B[^e]te noire.

   Black beetle (Zool.), the common large cockroach (Blatta
      orientalis).

   Black bonnet (Zool.), the black-headed bunting (Embriza
      Sch[oe]niclus) of Europe.

   Black canker, a disease in turnips and other crops,
      produced by a species of caterpillar.

   Black cat (Zool.), the fisher, a quadruped of North America
      allied to the sable, but larger. See Fisher.

   Black cattle, any bovine cattle reared for slaughter, in
      distinction from dairy cattle. [Eng.]

   Black cherry. See under Cherry.

   Black cockatoo (Zool.), the palm cockatoo. See Cockatoo.


   Black copper. Same as Melaconite.

   Black currant. (Bot.) See Currant.

   Black diamond. (Min.) See Carbonado.

   Black draught (Med.), a cathartic medicine, composed of
      senna and magnesia.

   Black drop (Med.), vinegar of opium; a narcotic preparation
      consisting essentially of a solution of opium in vinegar.


   Black earth, mold; earth of a dark color. --Woodward.

   Black flag, the flag of a pirate, often bearing in white a
      skull and crossbones; a signal of defiance.

   Black flea (Zool.), a flea beetle (Haltica nemorum)
      injurious to turnips.

   Black flux, a mixture of carbonate of potash and charcoal,
      obtained by deflagrating tartar with half its weight of
      niter. --Brande & C.

   Black Forest [a translation of G. Schwarzwald], a forest in
      Baden and W["u]rtemburg, in Germany; a part of the ancient
      Hercynian forest.

   Black game, or Black grouse. (Zool.) See Blackcock,
      Grouse, and Heath grouse.

   Black grass (Bot.), a grasslike rush of the species Juncus
      Gerardi, growing on salt marshes, and making good hay.

   Black gum (Bot.), an American tree, the tupelo or
      pepperidge. See Tupelo.

   Black Hamburg (grape) (Bot.), a sweet and juicy variety of
      dark purple or "black" grape.

   Black horse (Zool.), a fish of the Mississippi valley
      (Cycleptus elongatus), of the sucker family; the
      Missouri sucker.

   Black lemur (Zool.), the Lemurniger of Madagascar; the
      acoumbo of the natives.

   Black list, a list of persons who are for some reason
      thought deserving of censure or punishment; -- esp. a list
      of persons stigmatized as insolvent or untrustworthy, made
      for the protection of tradesmen or employers. See
      Blacklist, v. t.

   Black manganese (Chem.), the black oxide of manganese,
      MnO2.

   Black Maria, the close wagon in which prisoners are carried
      to or from jail.

   Black martin (Zool.), the chimney swift. See Swift.

   Black moss (Bot.), the common so-called long moss of the
      southern United States. See Tillandsia.

   Black oak. See under Oak.

   Black ocher. See Wad.

   Black pigment, a very fine, light carbonaceous substance,
      or lampblack, prepared chiefly for the manufacture of
      printers' ink. It is obtained by burning common coal tar.


   Black plate, sheet iron before it is tinned. --Knight.

   Black quarter, malignant anthrax with engorgement of a
      shoulder or quarter, etc., as of an ox.

   Black rat (Zool.), one of the species of rats (Mus
      rattus), commonly infesting houses.

   Black rent. See Blackmail, n., 3.

   Black rust, a disease of wheat, in which a black, moist
      matter is deposited in the fissures of the grain.

   Black sheep, one in a family or company who is unlike the
      rest, and makes trouble.

   Black silver. (Min.) See under Silver.

   Black and tan, black mixed or spotted with tan color or
      reddish brown; -- used in describing certain breeds of
      dogs.

   Black tea. See under Tea.

   Black tin (Mining), tin ore (cassiterite), when dressed,
      stamped and washed, ready for smelting. It is in the form
      of a black powder, like fine sand. --Knight.

   Black walnut. See under Walnut.

   Black warrior (Zool.), an American hawk (Buteo Harlani).
      [1913 Webster]

   Syn: Dark; murky; pitchy; inky; somber; dusky; gloomy; swart;
        Cimmerian; ebon; atrocious.
        [1913 Webster]

WordNet (r) 3.0 (2006):

black diamond
    n 1: an inferior dark diamond used in industry for drilling and
         polishing [syn: carbonado, black diamond]

U.S. Gazetteer Places (2000):

Black Diamond, FL -- U.S. Census Designated Place in Florida
   Population (2000):    694
   Housing Units (2000): 374
   Land area (2000):     3.779997 sq. miles (9.790146 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    3.779997 sq. miles (9.790146 sq. km)
   FIPS code:            06667
   Located within:       Florida (FL), FIPS 12
   Location:             28.911262 N, 82.492608 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Black Diamond, FL
    Black Diamond


U.S. Gazetteer Places (2000):

Black Diamond, WA -- U.S. city in Washington
   Population (2000):    3970
   Housing Units (2000): 1538
   Land area (2000):     5.368292 sq. miles (13.903813 sq. km)
   Water area (2000):    0.513915 sq. miles (1.331034 sq. km)
   Total area (2000):    5.882207 sq. miles (15.234847 sq. km)
   FIPS code:            06330
   Located within:       Washington (WA), FIPS 53
   Location:             47.317802 N, 122.014793 W
   ZIP Codes (1990):     98010
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Black Diamond, WA
    Black Diamond