SUBTRACTION
Meaning of SUBTRACTION in English
sub ‧ trac ‧ tion /səbˈtrækʃ ə n/ BrE AmE noun [countable]
the process of taking a number or amount from a larger number or amount ⇨ addition
Longman Dictionary of Contemporary English.
Longman - Словарь современного английского языка.
2012