be·ta 
/ˈbeɪtə, Brit ˈbi:tə/ noun
/ˈbeɪtə, Brit ˈbi:tə/ noun 1 [singular] : the second letter of the Greek alphabet — Β or β 2 [noncount] : a version of a product (such as a computer program) that is almost finished and that is used for testing
▪ a program that is currently in beta — often used before another noun ▪ the beta version of the software ▪ a beta test ▪ beta testing
▪ a program that is currently in beta — often used before another noun ▪ the beta version of the software ▪ a beta test ▪ beta testing
