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slip +‎ -age


slippage (countable and uncountable, plural slippages)

  1. The act of slipping, especially from a secure location.
  2. The amount by which something has slipped.
  3. A lessening of performance or achievement.
    Supply-chain problems led to a slippage in production last week.
  4. A decrease in motion, or in the power of a mechanical system due to slipping.
  5. The difference between estimated and actual transaction costs.
  6. Movement of earth on a slope, a landslip.
    • 2021 February 24, “Landslips close lines near Tonbridge”, in RAIL, number 925, page 22:
      The slippage at High Brooms was detected by remote sensors on the site, after two previous incidents in the same area.