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sphenoidmore about sphenoid

sphenoid


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Sphenoid  \Sphe"noid\,  n. 
  1.  (Crystallog.)  A  wedge-shaped  crystal  bounded  by  four  equal 
  isosceles  triangles.  It  is  the  hemihedral  form  of  a  square 
  pyramid. 
 
  2.  (Anat.)  The  sphenoid  bone. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Sphenoid  \Sphe"noid\,  a.  [Gr.  ???;  sfh`n  a  wedge  +  e'i^dos  form: 
  cf  F.  sph['e]no["i]de.] 
  1.  Wedge-shaped;  as  a  sphenoid  crystal. 
 
  2.  (Anat.)  Of  or  pertaining  to  the  sphenoid  bone. 
 
  {Sphenoid  bone}  (Anat.),  an  irregularly  shaped  bone  in  front 
  of  the  occipital  in  the  base  of  the  skull  of  the  higher 
  vertebrates.  It  is  composed  of  several  fetal  bones  which 
  become  united  the  adult.  See  {Alisphenoid}, 
  {Basisphenoid},  {Orbitosphenoid},  {Presphenoid}. 




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