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Definition of "disjunction" [dis•junc•tion]

  • The act of disjoining or the condition of being disjointed. (noun)
  • Logic A proposition that presents two or more alternative terms, with the assertion that only one is true. (noun)
  • Logic A proposition that presents two or more alternative terms, with the assertion that at least one is true. (noun)
  • Genetics The separation of homologous chromosomes during meiosis. (noun)
  • The act of disconnecting or the state of being disconnected; separation (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

  • The separation of the chromosomes of each homologous pair during the anaphase of meiosis (noun)
  • The operator that forms a compound sentence from two given sentences and corresponds to the English or (noun)
  • A sentence so formed. Usually written p∨q where p, q are the component sentences, it is true (inclusive sense) whenever either or both of the latter are true; the exclusive disjunction, for which there is no symbol, is true when either but not both disjuncts is (noun)
  • The relation between such sentences (noun)

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Use "disjunction" in a sentence
  • "But nowadays the term disjunction is more often used in reference to sentences (or well-formed formulae) of associated form occurring in formal languages."
  • "This study demonstrates a violation of the rule in a context that justifies the label disjunction fallacy."
  • "And my heart with the fires of disjunction is fried:"