3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Exhaust  \Ex*haust"\,  v.  t.  [imp.  &  p.  p.  {Exhausted};  p.  pr  & 
  vb  n.  {Exhausting}.]  [L.  exhaustus  p.  p.  of  exhaurire  ex 
  out  +  haurire  haustum  to  draw,  esp.  water;  perhaps  akin  to 
  Icel.  asua  to  sprinkle,  pump.] 
  1.  To  draw  or  let  out  wholly;  to  drain  off  completely;  as  to 
  exhaust  the  water  of  a  well  the  moisture  of  the  earth  is 
  exhausted  by  evaporation. 
 
  2.  To  empty  by  drawing  or  letting  out  the  contents;  as  to 
  exhaust  a  well  or  a  treasury. 
 
  3.  To  drain,  metaphorically;  to  use  or  expend  wholly,  or  till 
  the  supply  comes  to  an  end  to  deprive  wholly  of  strength; 
  to  use  up  to  weary  or  tire  out  to  wear  out  as  to 
  exhaust  one's  strength,  patience,  or  resources. 
 
  A  decrepit,  exhausted  old  man  at  fifty-five. 
  --Motley. 
 
  4.  To  bring  out  or  develop  completely;  to  discuss  thoroughly; 
  as  to  exhaust  a  subject. 
 
  5.  (Chem.)  To  subject  to  the  action  of  various  solvents  in 
  order  to  remove  all  soluble  substances  or  extractives;  as 
  to  exhaust  a  drug  successively  with  water,  alcohol,  and 
  ether. 
 
  {Exhausted  receiver}.  (Physics)  See  under  {Receiver}. 
 
  Syn:  To  spend;  consume;  tire  out  weary. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Exhausting  \Ex*haust"ing\,  a. 
  Producing  exhaustion;  as  exhausting  labors.  -- 
  {Ex*haust"ing},  adv 
 
  From  WordNet  r  1.6  [wn]: 
 
  exhausting 
  adj  1:  having  a  debilitating  effect;  "a  killing  job  in  the  hot  sun" 
  [syn:  {draining},  {killing}] 
  2:  producing  exhaustion;  "an  exhausting  march";  "the  visit  was 
  especially  wearing"  [syn:  {tiring},  {wearing},  {wearying}] 

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