fertilization [fertilizations](act of rendering fertile) noun [UK: ˌfɜː.tə.laɪ.ˈzeɪʃ.n̩] [US: ˌfər.tə.lə.ˈzeɪʃ.n̩]
fertilização in vitro noun {f}
in vitro fertilization [in vitro fertilizations]((medicine) the fertilization of an egg by sperm outside of a woman's body) noun [UK: ɪn ˈvɪ.trəʊ ˌfɜː.tə.laɪ.ˈzeɪʃ.n̩] [US: ɪn ˈvɪtro.ʊ ˌfər.tə.lə.ˈzeɪʃ.n̩]