feeder Syllabification: (feed·er)Pronunciation: /ˈfēdər/Translate feeder | into Italian Definition of feeder noun 1a person or animal that eats a particular food or in a particular manner:a plankton feeder 2a container filled with food for birds or mammals. 3a person or thing that supplies something, in particular. a device supplying material to a machine:the automatic sheet feeder holds up to 10 sheets of paper a tributary stream. [usually as modifier] a branch road or railroad line linking outlying districts with a main communication system. a transmission line carrying electricity to a distribution point. [usually as modifier] a school, sports team, etc., from which members move on to one more advanced:a feeder school for Florida State Universityfeeder in other Oxford dictionaries Definition of feeder in the British & World English dictionary