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[uhn-der-feed for 1; uhn-der-feed for 2] /ˌʌn dərˈfid for 1; ˈʌn dɛrˌfid for 2/
verb (used with object), underfed, underfeeding.
to feed insufficiently.
to feed with fuel from beneath.
Origin of underfeed
1650-60; under- + feed Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for underfeed
  • There are two general types of systems- underfeed and overfeed.
  • The wood fuel is introduced either on top of the pile or through an underfeed arrangement using an auger.
  • At length the animals began to drop and die in harness, from overwork and underfeed, which forced us to stop.
  • underfeed stokers supply both fuel and primary combustion air from beneath the grate.
  • It generally is better to underfeed fish than to overfeed them.
  • Multiple retort underfeed stokers are used for coking coals with high ash fusion temperatures.
  • Care must be taken not to overfeed during the first few days, and not to underfeed in the later stages.
  • In this system the green hogged fuel is fed into the burning chamber through an underfeed pipe.
  • Grate firing is the primary mechanism in underfeed and overfeed stokers.
  • Smaller needs are typically met with underfeed and overfeed stokers.
British Dictionary definitions for underfeed


verb (transitive) (ˌʌndəˈfiːd) -feeds, -feeding, -fed
to give too little food to
to supply (a furnace, engine, etc) with fuel from beneath
noun (ˈʌndəˌfiːd)
an apparatus by which fuel, etc, is supplied from below
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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