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density

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density


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Density  \Den"si*ty\,  n.  [L.  densitas  cf  F.  densit['e].] 
  1.  The  quality  of  being  dense,  close  or  thick;  compactness; 
  --  opposed  to  rarity. 
 
  2.  (Physics)  The  ratio  of  mass,  or  quantity  of  matter,  to 
  bulk  or  volume,  esp.  as  compared  with  the  mass  and  volume 
  of  a  portion  of  some  substance  used  as  a  standard. 
 
  Note:  For  gases  the  standard  substance  is  hydrogen,  at  a 
  temperature  of  0[deg]  Centigrade  and  a  pressure  of  760 
  millimeters.  For  liquids  and  solids  the  standard  is 
  water  at  a  temperature  of  4[deg]  Centigrade.  The 
  density  of  solids  and  liquids  is  usually  called 
  specific  gravity,  and  the  same  is  true  of  gases  when 
  referred  to  air  as  a  standard. 
 
  3.  (Photog.)  Depth  of  shade.  --Abney. 
 
  From  WordNet  r  1.6  [wn]: 
 
  density 
  n  1:  the  amount  per  unit  size  [syn:  {denseness}] 
  2:  the  spatial  property  of  being  crowded  together  [syn:  {concentration}, 
  {denseness},  {compactness}]  [ant:  {distribution}] 




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