in vi·tro 
/ɪnˈvi:troʊ/ adjective
/ɪnˈvi:troʊ/ adjective technical : outside the body
▪ an in vitro study/test ▪ a baby conceived through in vitro fertilization [=fertilization of an egg outside the mother's body]
▪ an in vitro study/test ▪ a baby conceived through in vitro fertilization [=fertilization of an egg outside the mother's body]
— in vitro adverb
▪ an egg fertilized in vitro
▪ an egg fertilized in vitro
