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  2  definitions  found 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Nutrition  \Nu*tri"tion\,  n.  [Cf.  F.  nutrition.  See 
  1.  (Physiol.)  In  the  broadest  sense  a  process  or  series  of 
  processes  by  which  the  living  organism  as  a  whole  (or  its 
  component  parts  or  organs)  is  maintained  in  its  normal 
  condition  of  life  and  growth. 
  Note:  In  this  wide  sense  it  comprehends  digestion, 
  absorption,  circulation,  assimilation,  etc.,  in  fact 
  all  of  the  steps  by  which  the  nutritive  matter  of  the 
  food  is  fitted  for  incorporation  with  the  different 
  tissues,  and  the  changes  which  it  undergoes  after  its 
  assimilation,  prior  to  its  excretion.  See  {Metabolism}. 
  2.  (Physiol.)  In  a  more  limited  sense  the  process  by  which 
  the  living  tissues  take  up  from  the  blood,  matters 
  necessary  either  for  their  repair  or  for  the  performance 
  of  their  healthy  functions. 
  3.  That  which  nourishes;  nutriment. 
  Fixed  like  a  plant,  on  his  peculiar  spot,  To  draw 
  nutrition,  propagate,  and  rot.  --Pope. 
  From  WordNet  r  1.6  [wn]: 
  n  :  the  organic  process  by  which  an  organism  assimilates  food 
  and  uses  it  for  growth  and  maintenance 

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