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datum

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datum


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Datum  \Da"tum\,  n.;  pl  {Data}.  [L.  See  2d  {Date}.] 
  1.  Something  given  or  admitted;  a  fact  or  principle  granted; 
  that  upon  which  an  inference  or  an  argument  is  based;  -- 
  used  chiefly  in  the  plural. 
 
  Any  writer,  therefore,  who  .  .  .  furnishes  us  with 
  data  sufficient  to  determine  the  time  in  which  he 
  wrote.  --Priestley. 
 
  2.  pl  (Math.)  The  quantities  or  relations  which  are  assumed 
  to  be  given  in  any  problem. 
 
  {Datum  line}  (Surv.),  the  horizontal  or  base  line  from  which 
  the  heights  of  points  are  reckoned  or  measured,  as  in  the 
  plan  of  a  railway,  etc 
 
  From  WordNet  r  1.6  [wn]: 
 
  datum 
  n  :  an  item  of  factual  information  derived  from  measurement  or 
  research  [syn:  {data  point}] 




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