Usually means: Exclusive or; differs from or.
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We found 28 dictionaries that define the word xor:

General (10 matching dictionaries)
  1. XOR, XOR: Merriam-Webster
  2. XOR: Oxford Learner's Dictionaries
  3. XOR: American Heritage Dictionary of the English Language
  4. Xor, xor: Wordnik
  5. XOR, -xor, xor: Wiktionary
  6. XOR: Infoplease Dictionary
  7. xor: Dictionary.com
  8. XOR (disambiguation), XOR (video game), XOR, Xor: Wikipedia, the Free Encyclopedia
  9. XOR: Stammtisch Beau Fleuve Acronyms
  10. XOR: TheFreeDictionary.com

Computing (8 matching dictionaries)
  1. xor: Free On-line Dictionary of Computing
  2. XOR: CCI Computer
  3. Technology Terms and Acronyms (No longer online)
  4. BABEL: Computer Oriented Abbreviations and Acronyms (No longer online)
  5. XOR: Computer Telephony & Electronics Dictionary and Glossary
  6. xor: Dictionary of Algorithms and Data Structures
  7. xor: Hacking Lexicon
  8. XOR (logic), XOR: Encyclopedia

Medicine (1 matching dictionary)
  1. online medical dictionary (No longer online)

Miscellaneous (3 matching dictionaries)
  1. XOR: Acronym Finder
  2. AbbreviationZ (No longer online)
  3. XOR: Wordcraft Dictionary

Science (5 matching dictionaries)
  1. A Glossary of Mathematical Terms (No longer online)
  2. XOR, Xor: Eric Weisstein's World of Mathematics
  3. The Computational Beauty of Nature (No longer online)
  4. xor: PlanetMath Encyclopedia
  5. FOLDOP - Free On Line Dictionary Of Philosophy (No longer online)

Tech (1 matching dictionary)
  1. Rane Professional Audio Reference (No longer online)

Definitions from Wiktionary (XOR)

noun:  The logic function exclusive OR (as opposed to inclusive OR), whose output is true only when exactly one of its inputs is true.
noun:  (logic) The connective "exclusive or". One way to state its meaning in plain English is "if either A or B, but not if both."
noun:  (electrical engineering) A logic gate that implements "exclusive or".
noun:  (programming) The symbolic representation that implements "exclusive or".
verb:  (transitive, computing) To perform the XOR function upon.

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