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: an impression made by the thumb
: a print made by the inside of the first joint
: something that identifies
: fingerprint sense 2a
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These example sentences are selected automatically from various online news sources to reflect current usage of the word 'thumbprint.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
1900, in the meaning defined at sense 1
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Resources for thumbprint
18 Sep 2018
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More Definitions for thumbprint
: the pattern of marks made by pressing your thumb on a surface : a fingerprint made by a thumb
See the full definition for thumbprint in the English Language Learners Dictionary
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to deposit or conceal in a hiding place
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