ˈcheck ˌdigit BrE AmE noun [countable] technical
the number on the far right of a ↑ bar code . It is used to check that the information on the bar code is correct.
ˈcheck ˌdigit BrE AmE noun [countable] technical
the number on the far right of a ↑ bar code . It is used to check that the information on the bar code is correct.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012