fol·low–on 
/ˈfɑ:loʊˌɑ:n/ noun
plural fol·low–ons /ˈfɑ:loʊˌɑ:n/ noun [count] : something that happens or is done to continue or add to something previous — usually singular ▪ The new project is a natural follow-on to last year's success.
— follow–on adjective always used before a noun
▪ a follow-on product
▪ a follow-on product
