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blastosphere

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blastosphere


  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Morula  \Mor"u*la\,  n.;  pl  {Morul[ae]}.  [NL.,  dim.  of  L.  morum  a 
  mulberry.]  (Biol.) 
  The  sphere  or  globular  mass  of  cells  (blastomeres),  formed  by 
  the  clevage  of  the  ovum  or  egg  in  the  first  stages  of  its 
  development;  --  called  also  {mulberry  mass},  {segmentation 
  sphere},  and  {blastosphere}.  See  {Segmentation}. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Blastosphere  \Blas"to*sphere\,  n.  [Gr.  blasto`s  sprout  +  E. 
  sphere.]  (Biol.) 
  The  hollow  globe  or  sphere  formed  by  the  arrangement  of  the 
  blastomeres  on  the  periphery  of  an  impregnated  ovum. 
 
  Note:  [See  Illust.  of  {Invagination}.] 
 
  From  WordNet  r  1.6  [wn]: 
 
  blastosphere 
  n  :  early  stage  of  an  embryo  produced  by  cleavage  of  an  ovum;  a 
  hollow  sphere  whose  wall  is  composed  of  a  single  layer  of 
  cells  [syn:  {blastula},  {blastodermic  vesicle}] 




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