Thumbprint
(noun)
A unique mark made by pressing one's thumb against a surface, typically used for identification purposes.
Origin:
The word thumbprint comes from the action of pressing one's thumb against a surface in order to leave a unique mark.
Examples:
- A thumbprint is used as a form of identification in many security systems.
- Thumbprint is a common biometric method of identification, along with fingerprints and facial recognition.
- A thumbprint can be used to access a phone, computer, or other device.
- Thumbprint can also be used as a digital signature to confirm the authenticity of a document or transaction.
- Thumbprint recognition is a fast and convenient way to authenticate a user.