Definition of audit trail noun from the Oxford Advanced Learner's Dictionary

 

audit trail

 noun
noun
BrE
 
; NAmE
 
Running a business
 
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the detailed record of information on paper or on a computer that can be examined to prove what happened, for example what pieces of business were done and what decisions were made There is an audit trail by way of tax invoices which VAT auditors can follow. See related entries: Running a business
See the Oxford Advanced American Dictionary entry: audit trail