underfeeder

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English

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Etymology

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under- +‎ feeder or underfeed +‎ -er

Noun

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underfeeder (plural underfeeders)

  1. (engineering) A device that feeds in material from below.
    • 1890, The Review of Reviews, volume 2, page 29:
      He speaks well of Andrews' Helix Underfeeder, by which the fire is always fed from below.