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distillation

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distillation


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Distillation  \Dis`til*la"tion\,  n.  [F.  distillation,  L. 
  destillatio.] 
  1.  The  act  of  falling  in  drops,  or  the  act  of  pouring  out  in 
  drops. 
 
  2.  That  which  falls  in  drops.  [R.]  --Johnson 
 
  3.  (Chem.)  The  separation  of  the  volatile  parts  of  a 
  substance  from  the  more  fixed;  specifically,  the  operation 
  of  driving  off  gas  or  vapor  from  volatile  liquids  or 
  solids,  by  heat  in  a  retort  or  still  and  the  condensation 
  of  the  products  as  far  as  possible  by  a  cool  receiver, 
  alembic,  or  condenser;  rectification;  vaporization; 
  condensation;  as  the  distillation  of  illuminating  gas  and 
  coal,  of  alcohol  from  sour  mash,  or  of  boric  acid  in 
  steam. 
 
  Note:  The  evaporation  of  water,  its  condensation  into  clouds, 
  and  its  precipitation  as  rain,  dew,  frost,  snow,  or 
  hail,  is  an  illustration  of  natural  distillation. 
 
  4.  The  substance  extracted  by  distilling.  --Shak. 
 
  {Destructive  distillation}  (Chem.),  the  distillation, 
  especially  of  complex  solid  substances,  so  that  the 
  ultimate  constituents  are  separated  or  evolved  in  new 
  compounds,  --  usually  requiring  a  high  degree  of  heat;  as 
  the  destructive  distillation  of  soft  coal  or  of  wood. 
 
  {Dry  distillation},  the  distillation  of  substances  by 
  themselves,  or  without  the  addition  of  water  or  of  other 
  volatile  solvent;  as  the  dry  distillation  of  citric  acid. 
 
 
  {Fractional  distillation}.  (Chem.)  See  under  {Fractional}. 
 
  From  WordNet  r  1.6  [wn]: 
 
  distillation 
  n  1:  the  process  of  boiling  a  liquid  and  condensing  its  vapors 
  [syn:  {distillment}] 
  2:  a  liquid  produced  by  condensation  from  a  vapor  during 
  distilling;  the  product  of  distilling  [syn:  {distillate}] 




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