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annuli

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annuli


  1  definition  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Annulus  \An"nu*lus\,  n.;  pl  {Annuli}.  [L.] 
  1.  A  ring;  a  ringlike  part  or  space. 
 
  2.  (Geom.) 
  a  A  space  contained  between  the  circumferences  of  two 
  circles,  one  within  the  other 
  b  The  solid  formed  by  a  circle  revolving  around  a  line 
  which  is  the  plane  of  the  circle  but  does  not  cut  it 
 
  3.  (Zo["o]l.)  Ring-shaped  structures  or  markings,  found  in 
  or  upon  various  animals. 




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