OR

See also: Appendix:Variations of "or"

English

Conjunction

OR

  1. (logic) Inclusive or; either one proposition or the other is true or both.
  2. (computer science) A lexical symbol to implement inclusive or in a computer language.
  3. (electrical engineering) A logical gate to implement inclusive or.

Noun

OR (uncountable)

  1. (logic) The binary operator inclusive or, true if one at least one of two inputs is true. In infix notation.
OR Truth Table
InputOutput
AB
000
011
101
111

Synonyms

Antonyms

See also

Noun

OR (countable and uncountable, plural ORs)

  1. (healthcare, countable) Initialism of operating room.
    • 1998, Rushmore, 00:27:55
      Max Fischer: I like your nurse's uniform, guy. -- Dr. Peter Flynn: These are O.R. scrubs. -- Max Fischer: Oh, are they?
  2. (sciences, uncountable) Initialism of operations research.
  3. (sports, countable) Initialism of Olympic Record.
    Coordinate terms: OB, WR, CR, TR, NR
  4. (anatomy, countable) Initialism of odorant receptor.
  5. (anatomy, countable) Initialism of olfactory receptor.
  6. (Wikimedia jargon) Initialism of original research.
  7. (military) Initialism of other ranks.

Translations

Proper noun

OR

  1. Oregon, a state of the United States of America.
  2. Orissa, a state of India.

Anagrams
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