From Longman Dictionary of Contemporary Englishfeederfeed‧er /ˈfiːdə $ -ər/ noun [countable] 1 HBAHBBa container with food for animals or birds a bird feeder2 something that provides supplies for something else The Shyok River is a major feeder of the Indus River. The length of the feeder pipe is 50m.3 a piece of equipment that supplies something to a machine the printer’s paper feeder4 EATa person or animal that eats in a particular way Catfish are bottom feeders (=they feed at the bottom of rivers).5 TTa small road, railway line, or airline service that takes traffic to a main road, line, or service
Examples from the Corpus
feeder• Use of an automatic feeder is recommended for this.• Glassfish are not suitable for a community tank in any case, as they are nervous fish and fussy feeders.• This is where the feeder roots are. 