what is the meaning of fertilization?

fertilization is the union of sperm cell and egg cell

In terms of reproduction, you are right.

Fertilization is the process by which a male gamete (sperm) fuses with a female gamete (egg) to initiate the development of a new organism. It is a crucial step in sexual reproduction, leading to the formation of a zygote, which eventually develops into an embryo. Fertilization typically occurs in the reproductive organs of plants and animals, and it involves the union of genetic material from both parents to create offspring with a unique combination of traits.

Fertilization is the process by which a sperm cell and an egg cell unite to form a zygote, which eventually develops into an embryo. This biological process is crucial for sexual reproduction in organisms. If you are looking for a more detailed explanation or want to understand how this process occurs in different organisms, let me know!