Source : Webster's Revised Unabridged Dictionary (1913)

Fertilization \Fer`ti*li*za"tion\, n.
   1. The act or process of rendering fertile.

   2. (Biol.) The act of fecundating or impregnating animal or
      vegetable germs; esp., the process by which in flowers the
      pollen renders the ovule fertile, or an analogous process
      in flowerless plants; fecundation; impregnation.

   {Close fertilization} (Bot.), the fertilization of pistils by
      pollen derived from the stamens of the same blossom.

   {Cross fertilization}, fertilization by pollen from some
      other blossom. See under {Cross}, a.

Source : WordNet®

fertilization
     n 1: creation by the physical union of male and female gametes;
          of sperm and ova in an animal or pollen and ovule in a
          plant [syn: {fertilisation}, {fecundation}, {impregnation}]
     2: making fertile as by applying fertilizer or manure [syn: {fertilisation},
         {fecundation}, {dressing}]