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iron

more about iron

iron


  10  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Iron  \I"ron\  ([imac]"[u^]rn),  n.  [OE.  iren,  AS  [=i]ren, 
  [=i]sen,  [=i]sern;  akin  to  D.  ijzer  OS  [=i]sarn,  OHG. 
  [=i]sarn,  [=i]san,  G.  eisen,  Icel.  [=i]sarn,  j[=a]rn,  Sw  & 
  Dan.  jern,  and  perh.  to  E.  ice;  cf  Ir  iarann  W.  haiarn 
  Armor.  houarn.] 
  1.  (Chem.)  The  most  common  and  most  useful  metallic  element, 
  being  of  almost  universal  occurrence,  usually  in  the  form 
  of  an  oxide  (as  hematite,  magnetite,  etc.),  or  a  hydrous 
  oxide  (as  limonite,  turgite,  etc.).  It  is  reduced  on  an 
  enormous  scale  in  three  principal  forms;  viz.,  cast  iron, 
  steel,  and  wrought  iron.  Iron  usually  appears  dark  brown, 
  from  oxidation  or  impurity,  but  when  pure,  or  on  a  fresh 
  surface,  is  a  gray  or  white  metal.  It  is  easily  oxidized 
  (rusted)  by  moisture,  and  is  attacked  by  many  corrosive 
  agents.  Symbol  Fe  (Latin  Ferrum).  Atomic  weight  55.9. 
  Specific  gravity,  pure  iron,  7.86;  cast  iron,  7.1.  In 
  magnetic  properties,  it  is  superior  to  all  other 
  substances. 
 
  Note:  The  value  of  iron  is  largely  due  to  the  facility  with 
  which  it  can  be  worked  Thus  when  heated  it  is 
  malleable  and  ductile,  and  can  be  easily  welded  and 
  forged  at  a  high  temperature.  As  cast  iron,  it  is 
  easily  fusible;  as  steel,  is  very  tough,  and  (when 
  tempered)  very  hard  and  elastic.  Chemically,  iron  is 
  grouped  with  cobalt  and  nickel.  Steel  is  a  variety  of 
  iron  containing  more  carbon  than  wrought  iron,  but  less 
  that  cast  iron.  It  is  made  either  from  wrought  iron,  by 
  roasting  in  a  packing  of  carbon  (cementation)  or  from 
  cast  iron,  by  burning  off  the  impurities  in  a  Bessemer 
  converter  (then  called  Bessemer  steel),  or  directly 
  from  the  iron  ore  (as  in  the  Siemens  rotatory  and 
  generating  furnace). 
 
  2.  An  instrument  or  utensil  made  of  iron;  --  chiefly  in 
  composition;  as  a  flatiron,  a  smoothing  iron,  etc 
 
  My  young  soldier,  put  up  your  iron.  --Shak. 
 
  3.  pl  Fetters;  chains;  handcuffs;  manacles. 
 
  Four  of  the  sufferers  were  left  to  rot  in  irons. 
  --Macaulay. 
 
  4.  Strength;  power;  firmness;  inflexibility;  as  to  rule  with 
  a  rod  of  iron. 
 
  {Bar  iron}.  See  {Wrought  iron}  (below). 
 
  {Bog  iron},  bog  ore;  limonite.  See  {Bog  ore},  under  {Bog}. 
 
  {Cast  iron}  (Metal.),  an  impure  variety  of  iron,  containing 
  from  three  to  six  percent  of  carbon,  part  of  which  is 
  united  with  a  part  of  the  iron,  as  a  carbide,  and  the  rest 
  is  uncombined,  as  graphite.  It  there  is  little  free 
  carbon,  the  product  is  white  iron;  if  much  of  the  carbon 
  has  separated  as  graphite,  it  is  called  gray  iron.  See 
  also  {Cast  iron},  in  the  Vocabulary. 
 
  {Fire  irons}.  See  under  {Fire},  n. 
 
  {Gray  irons}.  See  under  {Fire},  n. 
 
  {Gray  iron}.  See  {Cast  iron}  (above). 
 
  {It  irons}  (Naut.),  said  of  a  sailing  vessel,  when  in 
  tacking,  she  comes  up  head  to  the  wind  and  will  not  fill 
  away  on  either  tack. 
 
  {Magnetic  iron}.  See  {Magnetite}. 
 
  {Malleable  iron}  (Metal.),  iron  sufficiently  pure  or  soft  to 
  be  capable  of  extension  under  the  hammer;  also  specif.,  a 
  kind  of  iron  produced  by  removing  a  portion  of  the  carbon 
  or  other  impurities  from  cast  iron,  rendering  it  less 
  brittle,  and  to  some  extent  malleable. 
 
  {Meteoric  iron}  (Chem.),  iron  forming  a  large  and  often  the 
  chief,  ingredient  of  meteorites.  It  invariably  contains  a 
  small  amount  of  nickel  and  cobalt.  Cf  {Meteorite}. 
 
  {Pig  iron},  the  form  in  which  cast  iron  is  made  at  the  blast 
  furnace,  being  run  into  molds,  called  pigs. 
 
  {Reduced  iron}.  See  under  {Reduced}. 
 
  {Specular  iron}.  See  {Hematite}. 
 
  {Too  many  irons  in  the  fire},  too  many  objects  requiring  the 
  attention  at  once. 
 
  {White  iron}.  See  {Cast  iron}  (above). 
 
  {Wrought  iron}  (Metal.),  the  purest  form  of  iron  commonly 
  known  in  the  arts,  containing  only  about  half  of  one  per 
  cent  of  carbon.  It  is  made  either  directly  from  the  ore, 
  as  in  the  Catalan  forge  or  bloomery,  or  by  purifying 
  (puddling)  cast  iron  in  a  reverberatory  furnace  or 
  refinery.  It  is  tough,  malleable,  and  ductile.  When  formed 
  into  bars,  it  is  called  bar  iron. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Iron  \I"ron\  ([imac]"[u^]rn),  a.  [AS.  [=i]ren,  [=i]sen.  See 
  {Iron},  n.] 
  1.  Of  or  made  of  iron;  consisting  of  iron;  as  an  iron  bar, 
  dust. 
 
  2.  Resembling  iron  in  color;  as  iron  blackness. 
 
  3.  Like  iron  in  hardness,  strength,  impenetrability,  power  of 
  endurance,  insensibility,  etc.;  as: 
  a  Rude;  hard;  harsh;  severe. 
 
  Iron  years  of  wars  and  dangers.  --Rowe. 
 
  Jove  crushed  the  nations  with  an  iron  rod. 
  --Pope. 
  b  Firm;  robust;  enduring;  as  an  iron  constitution. 
  c  Inflexible;  unrelenting;  as  an  iron  will 
  d  Not  to  be  broken;  holding  or  binding  fast  tenacious. 
  ``Him  death's  iron  sleep  oppressed.''  --Philips. 
 
  Note:  Iron  is  often  used  in  composition,  denoting  made  of 
  iron,  relating  to  iron,  of  or  with  iron;  producing 
  iron,  etc.;  resembling  iron,  literally  or  figuratively, 
  in  some  of  its  properties  or  characteristics;  as 
  iron-shod,  iron-sheathed,  iron-fisted,  iron-framed, 
  iron-handed,  iron-hearted,  iron  foundry  or 
  iron-foundry. 
 
  {Iron  age}. 
  a  (Myth.)  The  age  following  the  golden,  silver,  and 
  bronze  ages,  and  characterized  by  a  general 
  degeneration  of  talent  and  virtue,  and  of  literary 
  excellence.  In  Roman  literature  the  Iron  Age  is 
  commonly  regarded  as  beginning  after  the  taking  of 
  Rome  by  the  Goths,  A.  D.  410. 
  b  (Arch[ae]ol.)  That  stage  in  the  development  of  any 
  people  characterized  by  the  use  of  iron  implements  in 
  the  place  of  the  more  cumbrous  stone  and  bronze. 
 
  {Iron  cement},  a  cement  for  joints,  composed  of  cast-iron 
  borings  or  filings,  sal  ammoniac,  etc 
 
  {Iron  clay}  (Min.),  a  yellowish  clay  containing  a  large 
  proportion  of  an  ore  of  iron. 
 
  {Iron  cross},  a  Prussian  order  of  military  merit;  also  the 
  decoration  of  the  order 
 
  {Iron  crown},  a  golden  crown  set  with  jewels,  belonging 
  originally  to  the  Lombard  kings,  and  indicating  the 
  dominion  of  Italy.  It  was  so  called  from  containing  a 
  circle  said  to  have  been  forged  from  one  of  the  nails  in 
  the  cross  of  Christ. 
 
  {Iron  flint}  (Min.),  an  opaque,  flintlike  ferruginous 
  variety  of  quartz. 
 
  {Iron  founder},  a  maker  of  iron  castings. 
 
  {Iron  foundry},  the  place  where  iron  castings  are  made 
 
  {Iron  furnace},  a  furnace  for  reducing  iron  from  the  ore,  or 
  for  melting  iron  for  castings,  etc.;  a  forge;  a 
  reverberatory;  a  bloomery. 
 
  {Iron  glance}  (Min.),  hematite. 
 
  {Iron  hat},  a  headpiece  of  iron  or  steel,  shaped  like  a  hat 
  with  a  broad  brim,  and  used  as  armor  during  the  Middle 
  Ages. 
 
  {Iron  horse},  a  locomotive  engine.  [Colloq.] 
 
  {Iron  liquor},  a  solution  of  an  iron  salt,  used  as  a  mordant 
  by  dyers. 
 
  {Iron  man}  (Cotton  Manuf.),  a  name  for  the  self-acting 
  spinning  mule. 
 
  {Iron}  {mold  or  mould},  a  yellow  spot  on  cloth  stained  by 
  rusty  iron. 
 
  {Iron  ore}  (Min.),  any  native  compound  of  iron  from  which  the 
  metal  may  be  profitably  extracted.  The  principal  ores  are 
  magnetite,  hematite,  siderite,  limonite,  G["o]thite, 
  turgite,  and  the  bog  and  clay  iron  ores. 
 
  {Iron  pyrites}  (Min.),  common  pyrites,  or  pyrite.  See 
  {Pyrites}. 
 
  {Iron  sand},  an  iron  ore  in  grains,  usually  the  magnetic  iron 
  ore,  formerly  used  to  sand  paper  after  writing. 
 
  {Iron  scale},  the  thin  film  which  on  the  surface  of  wrought 
  iron  in  the  process  of  forging.  It  consists  essentially  of 
  the  magnetic  oxide  of  iron,  {Fe3O4>}. 
 
  {Iron  works},  a  furnace  where  iron  is  smelted,  or  a  forge, 
  rolling  mill,  or  foundry,  where  it  is  made  into  heavy 
  work  such  as  shafting,  rails,  cannon,  merchant  bar,  etc 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Iron  \I"ron\,  v.  t.  [imp.  &  p.  p.  {Ironed};  p.  pr  &  vb  n. 
  {Ironing}.] 
  1.  To  smooth  with  an  instrument  of  iron;  especially,  to 
  smooth,  as  cloth,  with  a  heated  flatiron;  --  sometimes 
  used  with  out 
 
  2.  To  shackle  with  irons;  to  fetter  or  handcuff.  ``Ironed 
  like  a  malefactor.''  --Sir  W.  Scott. 
 
  3.  To  furnish  or  arm  with  iron;  as  to  iron  a  wagon. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Iron  \I"ron\  ([imac]"[u^]rn),  n.  (Golf) 
  An  iron-headed  club  with  a  deep  face,  chiefly  used  in  making 
  approaches,  lifting  a  ball  over  hazards,  etc 
 
  From  WordNet  r  1.6  [wn]: 
 
  iron 
  adj  :  extremely  robust;  "an  iron  constitution"  [syn:  {cast-iron}] 
  n  1:  a  heavy  ductile  magnetic  metallic  element;  is  silver-white 
  in  pure  form  but  readily  rusts;  used  in  construction  and 
  tools  and  armament;  plays  a  role  in  the  transport  of 
  oxygen  by  the  blood  [syn:  {Fe},  {atomic  number  26}] 
  2:  a  golfclub  that  has  a  relatively  narrow  metal  head 
  3:  metal  shackles;  for  hands  or  legs  [syn:  {irons},  {chain},  {chains}] 
  4:  used  to  brand  live  stock  [syn:  {branding  iron}] 
  5:  flat  metal  base  is  heated  and  used  to  smooth  cloth  [syn:  {smoothing 
  iron}] 
  v  :  press  and  smooth  with  a  heated  iron;  "press  your  shirts" 
  [syn:  {iron  out}] 
 
  From  U.S.  Gazetteer  (1990)  [gazetteer]: 
 
  Iron,  MN 
  Zip  code(s):  55751 
 
  From  Jargon  File  (4.2.3,  23  NOV  2000)  [jargon]: 
 
  iron  n.  Hardware,  especially  older  and  larger  hardware  of 
  {mainframe}  class  with  big  metal  cabinets  housing  relatively  low-density 
  electronics  (but  the  term  is  also  used  of  modern  supercomputers). 
  Often  in  the  phrase  {big  iron}.  Oppose  {silicon}.  See  also  {dinosaur}. 
 
 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  iron 
 
  Hardware,  especially  older  and  larger  hardware  of  {mainframe} 
  class  with  big  metal  cabinets  housing  relatively  low-density 
  electronics  (but  the  term  is  also  used  of  modern 
  {supercomputer}s).  Often  in  the  phrase  {big  iron}.  Oppose 
  {silicon}. 
 
  See  also  {dinosaur}. 
 
  [{Jargon  File}] 
 
  (1994-11-04) 
 
 
 
  From  Elements  database  20001107  [elements]: 
 
  iron 
  Symbol:  Fe 
  Atomic  number:  26 
  Atomic  weight:  55.847 
  Silvery  malleable  and  ductile  metallic  transition  element.  Has  nine 
  isotopes  and  is  the  fourth  most  abundant  element  in  the  earth's  crust. 
  Required  by  living  organisms  as  a  trace  element  (used  in  hemoglobin  in 
  humans.)  Quite  reactive,  oxidizes  in  moist  air,  displaces  hydrogen  from 
  dilute  acids  and  combines  with  nonmetallic  elements. 
 
 
 
  From  Easton's  1897  Bible  Dictionary  [easton]: 
 
  Iron 
  Tubal-Cain  is  the  first-mentioned  worker  in  iron  (Gen.  4:22). 
  The  Egyptians  wrought  it  at  Sinai  before  the  Exodus.  David 
  prepared  it  in  great  abundance  for  the  temple  (1  Chr.  22:3: 
  29:7).  The  merchants  of  Dan  and  Javan  brought  it  to  the  market 
  of  Tyre  (Ezek.  27:19).  Various  instruments  are  mentioned  as  made 
  of  iron  (Deut.  27:5;  19:5;  Josh.  17:16,  18;  1  Sam.  17:7;  2  Sam. 
  12:31;  2  Kings  6:5,  6;  1  Chr.  22:3;  Isa.  10:34). 
 
  Figuratively,  a  yoke  of  iron  (Deut.  28:48)  denotes  hard 
  service;  a  rod  of  iron  (Ps.  2:9),  a  stern  government;  a  pillar 
  of  iron  (Jer.  1:18),  a  strong  support;  a  furnace  of  iron  (Deut. 
  4:20),  severe  labour;  a  bar  of  iron  (Job  40:18),  strength; 
  fetters  of  iron  (Ps.  107:10),  affliction;  giving  silver  for  iron 
  (Isa.  60:17),  prosperity. 
 




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