fertilisation

/F ER0 T IH1 L AH0 Z EY1 SH AH0 N/
noun
  1. 1

    The act or process of rendering fertile.

  2. 2

    The act of fecundating or impregnating animal or vegetable gametes; especially, the process by which in flowers the pollen renders the ovule fertile, or an analogous process in flowerless plants

  3. 3

    The act of applying fertilizer to soil.

Source: https://en.wiktionary.org/wiki/fertilisation, https://en.wiktionary.org/wiki/fertilization