English Dictionary

Definition of “deduction

deduction (dɪˈdʌkʃənPronunciation for deduction

Definitions

noun

  1. the act or process of deducting or subtracting
  2. something, esp a sum of money, that is or may be deducted
    1. the process of reasoning typical of mathematics and logic, whose conclusions follow necessarily from their premises
    2. an argument of this type
    3. the conclusion of such an argument
  3. logic 
    1. a systematic method of deriving conclusions that cannot be false when the premises are true, esp one amenable to formalization and study by the science of logic
    2. an argument of this type Compare induction (sense 4)

Usage examples

  • Or that, at least, was his deduction , for only the left foot was shod.
    Lyall, Francis, A Death in Time (1987)
  • The deduction starts from the first year of repayment to a maximum of seven consecutive assessment years.
    Business Today (2001)
  • Usually, the lower-income spouse must claim the deduction.
    Ottawa Sun (2003)
  • But for Hamilton's massive 15-point deduction we would have been languishing down there.
    Glasgow Herald (2001)
  • In lecture notes written in 1817 he referred to the lamp as `the result of pure experimental deduction.
    James Hamilton, FARADAY: The Life (2002)

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