feeder

noun

1. an animal being fattened or suitable for fattening

   noun.animal

   Source: WordNet 3.0

2. someone who consumes food for nourishment

   noun.person

   Synonyms eater

   Source: WordNet 3.0

3. a branch that flows into the main stream

   noun.object

   Synonyms affluent confluent tributary

   Antonyms distributary

   Source: WordNet 3.0

4. a machine that automatically provides a supply of some material

   noun.artifact

   Examples

   The feeder discharged feed into a trough for the livestock.

   Synonyms self-feeder

   Source: WordNet 3.0

5. an outdoor device that supplies food for wild birds

   noun.artifact

   Synonyms bird feeder birdfeeder

   Source: WordNet 3.0

6. an animal that feeds on a particular source of food

   noun.animal

   Examples

   A bark feeder.

   A mud feeder.

   Source: WordNet 3.0

7. One who, or that which, gives food or supplies nourishment; steward.

   noun

   Source: webster1913