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4 definitions found
 for Brown coal
From The Collaborative International Dictionary of English v.0.48 :

  Lignite \Lig"nite\ (l[i^]g"n[imac]t), n. [L. lignum wood: cf. F.
     lignite.] (Min.)
     Mineral coal retaining the texture of the wood from which it
     was formed, and burning with an empyreumatic odor. It is of
     more recent origin than the anthracite and bituminous coal of
     the proper coal series. Called also brown coal, wood
     coal.
     [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Brown \Brown\ (broun), a. [Compar. Browner; superl.
     Brownest.] [OE. brun, broun, AS. br?n; akin to D. bruin,
     OHG. br?n, Icel. br?nn, Sw. brun, Dan. bruun, G. braun, Lith.
     brunas, Skr. babhru. [root]93, 253. Cf. Bruin, Beaver,
     Burnish, Brunette.]
     Of a dark color, of various shades between black and red or
     yellow.
     [1913 Webster]
  
           Cheeks brown as the oak leaves.          --Longfellow.
     [1913 Webster]
  
     Brown Bess, the old regulation flintlock smoothbore musket,
        with bronzed barrel, formerly used in the British army.
  
     Brown bread
     (a) Dark colored bread; esp. a kind made of unbolted wheat
         flour, sometimes called in the United States Graham
         bread. "He would mouth with a beggar though she smelt
         brown bread and garlic." --Shak.
     (b) Dark colored bread made of rye meal and Indian meal, or
         of wheat and rye or Indian; rye and Indian bread. [U.S.]
         
  
     Brown coal, wood coal. See Lignite.
  
     Brown hematite or Brown iron ore (Min.), the hydrous iron
        oxide, limonite, which has a brown streak. See Limonite.
        
  
     Brown holland. See under Holland.
  
     Brown paper, dark colored paper, esp. coarse wrapping
        paper, made of unbleached materials.
  
     Brown spar (Min.), a ferruginous variety of dolomite, in
        part identical with ankerite.
  
     Brown stone. See Brownstone.
  
     Brown stout, a strong kind of porter or malt liquor.
  
     Brown study, a state of mental abstraction or serious
        reverie. --W. Irving.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Coal \Coal\ (k[=o]l), n. [AS. col; akin to D. kool, OHG. chol,
     cholo, G. kohle, Icel. kol, pl., Sw. kol, Dan. kul; cf. Skr.
     jval to burn. Cf. Kiln, Collier.]
     1. A thoroughly charred, and extinguished or still ignited,
        fragment from wood or other combustible substance;
        charcoal.
        [1913 Webster]
  
     2. (Min.) A black, or brownish black, solid, combustible
        substance, dug from beds or veins in the earth to be used
        for fuel, and consisting, like charcoal, mainly of carbon,
        but more compact, and often affording, when heated, a
        large amount of volatile matter.
        [1913 Webster]
  
     Note: This word is often used adjectively, or as the first
           part of self-explaining compounds; as, coal-black; coal
           formation; coal scuttle; coal ship. etc.
           [1913 Webster]
  
     Note: In England the plural coals is used, for the broken
           mineral coal burned in grates, etc.; as, to put coals
           on the fire. In the United States the singular in a
           collective sense is the customary usage; as, a hod of
           coal.
           [1913 Webster]
  
     Age of coal plants. See Age of Acrogens, under Acrogen.
        
  
     Anthracite or Glance coal. See Anthracite.
  
     Bituminous coal. See under Bituminous.
  
     Blind coal. See under Blind.
  
     Brown coal or Brown Lignite. See Lignite.
  
     Caking coal, a bituminous coal, which softens and becomes
        pasty or semi-viscid when heated. On increasing the heat,
        the volatile products are driven off, and a coherent,
        grayish black, cellular mass of coke is left.
  
     Cannel coal, a very compact bituminous coal, of fine
        texture and dull luster. See Cannel coal.
  
     Coal bed (Geol.), a layer or stratum of mineral coal.
  
     Coal breaker, a structure including machines and machinery
        adapted for crushing, cleansing, and assorting coal.
  
     Coal field (Geol.), a region in which deposits of coal
        occur. Such regions have often a basinlike structure, and
        are hence called coal basins. See Basin.
  
     Coal gas, a variety of carbureted hydrogen, procured from
        bituminous coal, used in lighting streets, houses, etc.,
        and for cooking and heating.
  
     Coal heaver, a man employed in carrying coal, and esp. in
        putting it in, and discharging it from, ships.
  
     Coal measures. (Geol.)
        (a) Strata of coal with the attendant rocks.
        (b) A subdivision of the carboniferous formation, between
            the millstone grit below and the Permian formation
            above, and including nearly all the workable coal beds
            of the world.
  
     Coal oil, a general name for mineral oils; petroleum.
  
     Coal plant (Geol.), one of the remains or impressions of
        plants found in the strata of the coal formation.
  
     Coal tar. See in the Vocabulary.
  
     To haul over the coals, to call to account; to scold or
        censure. [Colloq.]
  
     Wood coal. See Lignite.
        [1913 Webster]

From WordNet (r) 3.0 (2006) :

  brown coal
      n 1: intermediate between peat and bituminous coal [syn:
           lignite, brown coal, wood coal]

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