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⇱ disjunction - WordReference.com Dictionary of English

disjunction

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/dɪsˈdʒʌŋkʃən/US:USA pronunciation: respellingUSA pronunciation: respelling(dis jungk′shən)


WordReference Random House Unabridged Dictionary of American English © 2026
dis•junc•tion  (dis jungk′shən),USA pronunciation n. 
  1. the act of disjoining or the state of being disjoined:a disjunction between thought and action.
  2. Philosophy[Logic.]
    • Also called disjunctive, inclusive disjunction. a compound proposition that is true if and only if at least one of a number of alternatives is true.
    • Also called exclusive disjunction. a compound proposition that is true if and only if one and only one of a number of alternatives is true.
    • Philosophythe relation among the components of such a proposition, usually expressed by AND or V.
  • Latin disjunctiōn- (stem of disjunctiō) separation, equivalent. to disjunct(us) (see disjunct) + -iōn- -ion
  • Middle English disjunccioun 1350–1400

Collins Concise English Dictionary © HarperCollins Publishers::
disjunction /dɪsˈdʒʌŋkʃən/ n
  1. Also called: disjuncture the act of disconnecting or the state of being disconnected; separation
    • the operator that forms a compound sentence from two given sentences and corresponds to the English or
    • the relation between such sentences
'disjunction' also found in these entries (note: many are not synonyms or translations):
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