noun
thumbprint
noun
1
The mark left by pressing a thumb onto a surface, used to identify a person.
"He left a thumbprint on the wet paint."
"The border agent scanned her thumbprint at the gate."
How to Use Thumbprint
Learner’s notesIn plain EnglishThe unique pattern a thumb leaves when pressed on a surface, often used for identification.
Common pairings
thumbprint scanner
leave a thumbprint
Word Forms
thumbprints plural
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He left a _____ on the wet paint.
Etymology
A straightforward combination of thumb and print.