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infusoria

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infusoria


  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Infusoria  \In`fu*so"ri*a\,  n.  pl  [NL.;  --  so  called  because 
  found  in  infusions  which  are  left  exposed  to  the  air  for  a 
  time.  See  {Infuse}.]  (Zo["o]l.) 
  One  of  the  classes  of  Protozoa,  including  a  large  number  of 
  species,  all  of  minute  size. 
 
  Note:  They  are  found  in  all  seas,  lakes,  ponds,  and  streams, 
  as  well  as  in  infusions  of  organic  matter  exposed  to 
  the  air.  They  are  distinguished  by  having  vibrating 
  lashes  or  cilia,  with  which  they  obtain  their  food  and 
  swim  about.They  are  devided  into  the  orders  Flagellata, 
  Ciliata,  and  Tentaculifera.  See  these  words  in  the 
  Vocabulary.  Formely  the  term  Infusoria  was  applied  to 
  all  microscopic  organisms  found  in  water,  including 
  many  minute  plants,  belonging  to  the  diatoms,  as  well 
  as  minute  animals  belonging  to  various  classes,  as  the 
  Rotifera,  which  are  worms;  and  the  Rhizopoda,  which 
  constitute  a  distinct  class  of  Protozoa.  Fossil 
  Infusoria  are  mostly  the  siliceous  shells  of  diatoms; 
  sometimes  they  are  siliceous  skeletons  of  Radiolaria, 
  or  the  calcareous  shells  of  Foraminifera. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  {Protozoa},  including  {Infusoria}  and  {Rhizopoda}.  For 
  definitions,  see  these  names  in  the  Vocabulary. 
 
  From  WordNet  r  1.6  [wn]: 
 
  Infusoria 
  n  :  in  some  recent  classifications,  coextensive  with  the 
  Ciliata:  minute  organisms  found  in  decomposing  infusions 
  of  organic  matter  [syn:  {Infusoria},  {subclass  Infusoria}] 




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