feeder
noun
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an animal being fattened or suitable for fattening
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an animal that feeds on a particular source of food“a bark feeder”
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an outdoor device that supplies food for wild birdsbird feederbirdfeeder
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a machine that automatically provides a supply of some material“the feeder discharged feed into a trough for the livestock”self-feeder
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a branch that flows into the main streamtributaryconfluentaffluent
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someone who consumes food for nourishmenteater