Definition of feeder

• n. - One who, or that which, gives food or supplies nourishment; steward.
• n. - One who furnishes incentives; an encourager.
• n. - One who eats or feeds; specifically, an animal to be fed or fattened.
• n. - One who fattens cattle for slaughter.
• n. - A stream that flows into another body of water; a tributary; specifically (Hydraulic Engin.), a water course which supplies a canal or reservoir by gravitation or natural flow.
• n. - A branch railroad, stage line, or the like; a side line which increases the business of the main line.
• n. - A small lateral lode falling into the main lode or mineral vein.
• n. - A strong discharge of gas from a fissure; a blower.
• n. - An auxiliary part of a machine which supplies or leads along the material operated upon.
• n. - A device for supplying steam boilers with water as needed.