To make fertile or enrich; to supply with nourishment for plants; to make fruitful or productive; as, to fertilize land, soil, ground, and meadows.

To fecundate; as, to fertilize flower.

To put manure or certain chemicals put in the soil as food for the plants.

The act of or the actual substance added to soil to provide additional nutrients for plants. May also be used to describe the pollination process flowers undergo with the help of bees and other insects.

To make the female salmon's eggs ready to grow by spreading the male's milt over them.

To join male sperm with a female egg

To unite sperm and ovum, resulting in a zygote that typically develops into a new organism.

When the egg is penetrated by the sperm and the resulting fusion of genetic material develops into an embryo.