or Brit  fer*til*isa*tion  n :  an act or process of making fertile: as  a  :  an act or process of fecundation, insemination, or impregnation  b  :  the process of union of two gametes whereby the somatic chromosome number is restored and the development of a new individual is initiated fer*til*ize or Brit  fer*til*ise  vt -ized  or Brit  -ised  -iz*ing  or Brit  -is*ing  
 
 
 
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