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yolkmore about yolk

yolk


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Yolk  \Yolk\  (y[=o]lk  or  y[=o]k;  277),  n.  [OE.  yolke,  yelke, 
  [yogh]olke,  [yogh]elke,  AS  geoloca  geoleca  fr  geolu 
  yellow.  See  {Yellow}.]  [Written  also  {yelk}.] 
  1.  The  yellow  part  of  an  egg;  the  vitellus. 
 
  2.  (Zo["o]l.)  An  oily  secretion  which  naturally  covers  the 
  wool  of  sheep. 
 
  {Yolk  cord}  (Zo["o]l.),  a  slender  cord  or  duct  which  connects 
  the  yolk  glands  with  the  egg  chambers  in  certain  insects, 
  as  in  the  aphids. 
 
  {Yolk  gland}  (Zo["o]l.),  a  special  organ  which  secretes  the 
  yolk  of  the  eggs  in  many  turbellarians,  and  in  some  other 
  invertebrates.  See  Illust.  of  {Hermaphrodite}  in  Appendix. 
 
 
  {Yolk  sack}  (Anat.),  the  umbilical  vesicle.  See  under 
  {Unbilical}. 
 
  From  WordNet  r  1.6  [wn]: 
 
  yolk 
  n  :  nutritive  material  of  an  ovum  esp.  the  yellow  mass  of  a  bird 
  or  reptile  egg 




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