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anthracite

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anthracite


  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Anthracite  \An"thra*cite\,  n.  [L.  anthracites  a  kind  of 
  bloodstone;  fr  Gr  ?  like  coals,  fr  ?,  ?,  coal  or  charcoal. 
  Cf  {Anthrax}.] 
  A  hard,  compact  variety  of  mineral  coal,  of  high  luster, 
  differing  from  bituminous  coal  in  containing  little  or  no 
  bitumen,  in  consequence  of  which  it  burns  with  a  nearly  non 
  luminous  flame.  The  purer  specimens  consist  almost  wholly  of 
  carbon.  Also  called  glance  coal  and  blind  coal. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Coal  \Coal\,  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. 
 
  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. 
 
  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 
 
  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. 
 
  {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  {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}. 
 
  From  WordNet  r  1.6  [wn]: 
 
  anthracite 
  n  :  a  hard  natural  coal  that  burns  slowly  and  gives  intense  heat 
  [syn:  {anthracite  coal},  {hard  coal}] 




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