Definition from Wiktionary, the free dictionary
- (mathematics) The symbol − or - used to denote the operation of subtraction and to indicate that a number is negative.
- Often in typography (and always in computer programming), the hyphen (-) is used instead of the minus sign (−); in many fonts, the symbols are barely distinguishable or not at all (although the difference is clear in Times Roman). Careful typographers use the minus sign instead of the hyphen.
symbol used to denote the operation of subtraction and to indicate that a number is negative