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labra


  1  definition  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Labrum  \La"brum\,  n.;  pl  L.  {Labra},  E.  {Labrums}.  [L.] 
  1.  A  lip  or  edge,  as  of  a  basin. 
 
  2.  (Zo["o]l.) 
  a  An  organ  in  insects  and  crustaceans  covering  the  upper 
  part  of  the  mouth,  and  serving  as  an  upper  lip.  See 
  Illust.  of  {Hymenoptera}. 
  b  The  external  margin  of  the  aperture  of  a  shell.  See 
  {Univalve}. 




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