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From Wiktionary, the free dictionary

U+2212, −
MINUS SIGN

[U+2211]
Mathematical Operators
[U+2213]

Translingual

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Glyph origin

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There are many theories regarding the origin of the minus sign. According to one theory, it originates from a handwriting form of the letter m (for minus) that came to resemble a horizontal bar,[1] Another theory traces it back to a hieratic sign.

Symbol

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(English symbol name minus sign)

  1. (mathematics) subtraction
    8 − 3 = 5
  2. (mathematics) negative number
    • 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".
    Synonym:
    {1,2,4} − {1,3,4} = {2}
  4. (mathematics) from the negative side
    Synonym:
  5. (medicine) rejective result from laboratory test
  6. (electricity) cathode
  7. (informal, slang) Less than, or “or less”.
    13-less than 13 (years old)
  8. (informal) negative
    mh- (in English)negative mental health

Quotations

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For quotations using this term, see Citations:−.

Synonyms

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  • (non-Anglophone countries) ÷

Antonyms

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  • (antonym(s) of all except relative complement): +
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  • - (hyphen-minus)

References

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  1. ^ Wright, D. Franklin, New, Bill D. (2000) Intermediate Algebra, 4th edition, Thomson Learning, page 1