disjunction

From Old French disjunction, from Latin disjunctio

• (UK) IPA^(key): /dɪsˈdʒʌŋk(t)ʃən/, /dɪsˈdʒʊŋk(t)ʃən/

  Rhymes: -ʌŋkʃən

disjunction (countable and uncountable, plural disjunctions)

1. The act of disjoining; disunion, separation.
2. The state of being disjoined.
   • 2017 September 7, Ferdinand Mount, “Umbrageousness”, in London Review of Books‎:

     The disjunction between the despotism the British had been practising in India and the liberal, secular, democratic trends of their domestic politics was too embarrassing to endure indefinitely.

3. (logic) The proposition resulting from the combination of two or more propositions using the or operator.
4. (mathematics) A logical operator that results in “true” when some of its operands are true.
5. (biology) During meiosis, the separation of chromosomes (homologous in meiosis I, and sister chromatids in meiosis II).

• (in mathematics): logical connective

• (in logic): inclusive disjunction
• (in logic): exclusive disjunction

• (in logic): disjunct

• (in mathematics): conjunction

• disjunctive normal form

• disjoin
• disjoint
• disjunct
• disjunctive

• conjunction

• "Disjunction" in the Stanford Encyclopedia of Philosophy
• "Disjunction" in Wolfram MathWorld
• disjunction at OneLook Dictionary Search