Word familyadjectivecheckablecheckedcheckynouncheckercheckbookcheckclerkcheck digitcheckerboardchecking accountchecklistcheckmatecheckoutcheckpointcheckrailcheckreincheckroomchecksumcheckweigherverbcheck
ˈcheck ˌdigit noun [countableC] 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. 核对数位,校验数位〔条形码上最右边的数字,用于核对条形码信息是否正确〕
From Longman Business Dictionary
check digitˈcheck ˌdigit
COMPUTING a number or series of numbers added to the end of a code (=set of numbers or letters) to prevent a computer from making a mistake
a unique 5-digit staff number followed by a check digit