1. (noun) A form of logical reasoning that derives a conclusion from a set of premises and the conclusion cannot be false if the premises are true.

2. (noun) Moving from the general to the particular.


  1. All words have definitions. Deduction is a word. Therefore, deduction has a definition.
  2. Rain is wet. It is raining outside. It is wet outside.

Audio Pronunciation: (de·duc·tion)

Download Audio Pronunciation: deduction.mp3

Usage Notes:

  • Plural: deductions
  • Deduction begins with theory, moves to hypothesis, then to prediction, and finally to testing and observation.
  • Deduction is the traditional logic used in scientific research as outlined by the scientific method.
  • The hypothetico-deductive model refers to the process of deduction used as research method.
  • An argument derived through deduction is called a syllogism.
  • Deduction is the opposite of induction.
  • A type of reductionism.
  • Also called:
    • deductive logic
    • deductive reasoning
    • synthesis
  • Sociologists use deduction to determine the logic of their theoretical arguments.
  • A (noun) deductionist (verb) deduces (adjective) deductive or (adjective) deductional theories (adverb) deductionally.

Additional Information:

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Works Consulted

Abercrombie, Nicholas, Stephen Hill, and Bryan Turner. 2006. The Penguin Dictionary of Sociology. 5th ed. London: Penguin.

The American Heritage Dictionary of the English Language. 5th ed. 2011. Boston: Houghton Mifflin Harcourt.

Brinkerhoff, David, Lynn White, Suzanne Ortega, and Rose Weitz. 2011. Essentials of Sociology. 8th ed. Belmont, CA: Wadsworth.

Bruce, Steve, and Steven Yearley. 2006. The SAGE Dictionary of Sociology. Thousand Oaks, CA: SAGE.

Macmillan. (N.d.) Macmillan Dictionary. (

Merriam-Webster. (N.d.) Merriam-Webster Dictionary. (

Oxford University Press. (N.d.) Oxford Dictionaries. (

Princeton University. 2010. WordNet. (

Random House Webster’s College Dictionary. 1997. New York: Random House.

Scott, John, and Gordon Marshall. 2005. A Dictionary of Sociology. New York: Oxford University Press.

Stewart, Paul, and Johan Zaaiman, eds. 2015. Sociology: A Concise South African Introduction. Cape Town: Juta.

Turner, Bryan S., ed. 2006. The Cambridge Dictionary of Sociology. Cambridge: Cambridge University Press.

Wikipedia contributors. (N.d.) Wikipedia, The Free Encyclopedia. Wikimedia Foundation. (

Wikipedia contributors. (N.d.) Wiktionary, The Free Dictionary. Wikimedia Foundation. (

How to Cite the Definition of Deduction

ASA – American Sociological Association (5th edition)

Bell, Kenton, ed. 2014. “deduction.” In Open Education Sociology Dictionary. Retrieved June 16, 2019 (

APA – American Psychological Association (6th edition)

deduction. (2014). In K. Bell (Ed.), Open education sociology dictionary. Retrieved from

Chicago/Turabian: Author-Date – Chicago Manual of Style (16th edition)

Bell, Kenton, ed. 2014. “deduction.” In Open Education Sociology Dictionary. Accessed June 16, 2019.

MLA – Modern Language Association (7th edition)

“deduction.” Open Education Sociology Dictionary. Ed. Kenton Bell. 2014. Web. 16 Jun. 2019. <>.