fertilization

https://doi.org/10.1351/goldbook.10713

In reproductive biology, union of male and female gametes to form a zygote from which an embryo can develop.

See also: conception
Source:
PAC, 2016, 88, 713. (Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)) on page 754 [Terms] [Paper]