3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Pyrotritartaric  \Pyr`o*tri`tar*tar"ic\,  a.  [Pyro-  +  tri-  + 
  tartaric.]  (Chem.) 
  Designating  an  acid  which  is  more  commonly  called  {uric} 
  acid. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Uric  \U"ric\,  a.  [Gr.  ?  urine:  cf  F.  urique.  See  {Urine}.] 
  (Physiol.  Chem.) 
  Of  or  pertaining  to  urine;  obtained  from  urine;  as  uric 
  acid. 
 
  {Uric  acid},  a  crystalline  body,  present  in  small  quantity  in 
  the  urine  of  man  and  most  mammals.  Combined  in  the  form  of 
  urate  of  ammonia,  it  is  the  chief  constituent  of  the  urine 
  of  birds  and  reptiles,  forming  the  white  part  Traces  of 
  it  are  also  found  in  the  various  organs  of  the  body.  It  is 
  likewise  a  common  constituent,  either  as  the  free  acid  or 
  as  a  urate,  of  urinary  or  renal  calculi  and  of  the 
  so-called  gouty  concretions.  From  acid  urines,  uric  acid 
  is  frequently  deposited,  on  standing  in  a  cool  place  in 
  the  form  of  a  reddish  yellow  sediment,  nearly  always 
  crystalline.  Chemically,  it  is  composed  of  carbon, 
  hydrogen,  nitrogen,  and  oxygen,  {C5H4N4O3},  and  by 
  decomposition  yields  urea,  among  other  products.  It  can  be 
  made  synthetically  by  heating  together  urea  and  glycocoll. 
  It  was  formerly  called  also  {lithic  acid},  in  allusion  to 
  its  occurrence  in  stone,  or  calculus. 
 
  From  WordNet  r  1.6  [wn]: 
 
  uric 
  adj  :  in  or  relating  to  or  obtained  from  urine;  "uric  acid" 

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