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sagittamore about sagitta

sagitta


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Sagitta  \Sa*git"ta\,  n.  [L.,  an  arrow.] 
  1.  (Astron.)  A  small  constellation  north  of  Aquila;  the 
  Arrow. 
 
  2.  (Arch.)  The  keystone  of  an  arch.  [R.]  --Gwilt. 
 
  3.  (Geom.)  The  distance  from  a  point  in  a  curve  to  the  chord; 
  also  the  versed  sine  of  an  arc;  --  so  called  from  its 
  resemblance  to  an  arrow  resting  on  the  bow  and  string. 
  [Obs.] 
 
  4.  (Anat.)  The  larger  of  the  two  otoliths  or  ear  bones, 
  found  in  most  fishes. 
 
  5.  (Zo["o]l.)  A  genus  of  transparent,  free-swimming  marine 
  worms  having  lateral  and  caudal  fins,  and  capable  of 
  swimming  rapidly.  It  is  the  type  of  the  class 
  Ch[ae]tognatha. 
 
  From  WordNet  r  1.6  [wn]: 
 
  sagitta 
  n  :  any  arrowworm  of  the  genus  Sagitta 




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