the act of disjoining or the state of being disjoined: a disjunction between thought and action.
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.
the relation among the components of such a proposition, usually expressed by AND or V.

1350–1400; Middle English disjunccioun < Latin disjunctiōn- (stem of disjunctiō) separation, equivalent to disjunct(us) (see disjunct) + -iōn- -ion

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To disjunctions
World English Dictionary
disjunction (dɪsˈdʒʌŋkʃən)
1.  Also called: disjuncture the act of disconnecting or the state of being disconnected; separation
2.  cytology the separation of the chromosomes of each homologous pair during the anaphase of meiosis
3.  logic
 a.  the operator that forms a compound sentence from two given sentences and corresponds to the English or
 b.  a sentence so formed. Usually written pq 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
 c.  the relation between such sentences

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

disjunction dis·junc·tion (dĭs-jŭngk'shən)
The separation of homologous chromosomes during meiosis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature