thumbprint

noun thumb·print \ ˈthəm-ˌprint \
Updated on: 15 May 2018

Definition of thumbprint

1 : an impression made by the thumb; especially : a print made by the inside of the first joint
2 : something that identifies; especially : fingerprint 2a

Examples of thumbprint in a Sentence

  1. He left a dirty thumbprint on the page.

Recent Examples of thumbprint from the Web

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.

First Known Use of thumbprint

1900

in the meaning defined at sense 1

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THUMBPRINT Defined for English Language Learners

thumbprint

Definition of thumbprint for English Language Learners

  • : the pattern of marks made by pressing your thumb on a surface : a fingerprint made by a thumb


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