[UK and ANZ] usually -ise [verb] [T]To fertilize the sexual cells in a female animal or plant is to join with them so that young begin to be produced.The male sperm fertilizes the female egg.The flower is fertilized by the pollen which is carried by the bee.
FERTILIZE
Meaning of FERTILIZE in English
Cambridge English vocab. Кембриджский английский словарь. 2012