XOR

noun

ˌeks-ˈȯr How to pronounce XOR (audio)
ˈzȯr
: a logical operator whose output is true when either of two inputs are true but not both
The output varies according to the relative characteristics of the inputs, and by manipulating these the device can be made to perform the functions of all the kinds of logic gates used in computer circuitry (OR, NOR, AND, NAND and XOR).D. E. Thomsen, Science News, 29 Oct. 1983

called also exclusive or

Word History

First Known Use

1961, in the meaning defined above

Time Traveler
The first known use of XOR was in 1961

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near XOR

Cite this Entry

“XOR.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/XOR. Accessed 26 Nov. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!