English

Definition of thumbprint noun from the Oxford Advanced Learner's Dictionary

 

thumbprint

 noun
noun
BrE BrE//ˈθʌmprɪnt//
 
; NAmE NAmE//ˈθʌmprɪnt//
 
 
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the mark made by the pattern of lines on the top of a person’s thumb
See the Oxford Advanced American Dictionary entry: thumbprint