Definition from Wiktionary, the free dictionary
Jump to: navigation, search
Unicode name MINUS SIGN
Unicode block Mathematical Operators
Codepoint U+2212
See also: [U+2010 HYPHEN], [U+2013 EN DASH], - [U+002D HYPHEN-MINUS], [U+2014 EM DASH], and [U+4E00 CJK UNIFIED IDEOGRAPH-4E00]



  1. (mathematics) A minus sign. Used for the operation of subtraction.
    8 − 3 = 5
  2. (mathematics) negative sign. "negative", "minus", "the opposite of"
    • Aldrichimica Acta Volume 30 No 4 (pdf) from Sigma-Aldrich
      Decomposition of 4 in the presence of cis-piperylene at room temperature results in the stereocontrolled formation of trans-cycloheptadiene 27 in 90% ee (96% ee at -78 °C).
    −(−5) = 5
  3. (mathematics) Relative complement. "minus", "without".
    {1,2,4} − {1,3,4} = {2}
  4. (mathematics) from the negative side
    is the same as
  5. (medicine) rejective result from laboratory test
  6. (electricity) cathode


For usage examples of this term, see Citations:−.

Related terms[edit]

  • - (hyphen-minus)


  • (relative complement):