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stratummore about stratum

stratum


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Stratum  \Stra"tum\,  n.;  pl  E.  {Stratums},  L.  {Strata}.  The 
  latter  is  more  common.  [L.,  from  sternere,  stratum,  to 
  spread;  akin  to  Gr  ?  to  spread,  strew.  See  {Strew},  and  cf 
  {Consternation},  {Estrade},  {Prostrate},  {Stratus}, 
  {Street}.] 
  1.  (Geol.)  A  bed  of  earth  or  rock  of  one  kind  formed  by 
  natural  causes,  and  consisting  usually  of  a  series  of 
  layers,  which  form  a  rock  as  it  lies  between  beds  of  other 
  kinds.  Also  used  figuratively. 
 
  2.  A  bed  or  layer  artificially  made  a  course. 
 
  From  WordNet  r  1.6  [wn]: 
 
  stratum 
  n  :  one  of  several  parallel  layers  of  material  arranged  one  on 
  top  of  another  (such  as  a  layer  of  tissue  or  cells  in  an 
  organism) 




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