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Lifter can mean:

  • Ionocraft, a device that can generate thrust using ionised air with no moving parts
  • Tappet, part of an internal combustion engine that actuates a poppet valve through rocker arms and pushrods
  • Liquid fluoride thorium reactor, shortened to "LFTR" and pronounced "lifter"
  • In signal processing, a filter that operates on a cepstrum may be called a "lifter".