1  definition  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Spheromere  \Sphe"ro*mere\,  n.  [Sphere  +  -mere.]  (Zo["o]l.) 
  Any  one  of  the  several  symmetrical  segments  arranged  around 
  the  central  axis  and  composing  the  body  of  a  radiate  anmal. 

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