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infusorial


infusorial


  1  definition  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Infusorial  \In`fu*so"ri*al\,  a.  (Zo["o]l.) 
  Belonging  to  the  Infusoria;  composed  of  or  containing, 
  Infusoria;  as  infusorial  earth. 
 
  {Infusorial  earth}  (Geol.),  a  deposit  of  fine,  usually  white, 
  siliceous  material,  composed  mainly  of  the  shells  of  the 
  microscopic  plants  called  diatoms.  It  is  used  in  polishing 
  powder,  and  in  the  manufacture  of  dynamite.