noun
: one of a system of numbers represented by a sign + or - prefixed to a digit or other numeral such that the sum of two numbers with unlike signs and like numerical elements is 0
noun
: one of a system of numbers represented by a sign + or - prefixed to a digit or other numeral such that the sum of two numbers with unlike signs and like numerical elements is 0
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012