thumbprint

[ thuhm-print ]
/ ˈθʌmˌprɪnt /

noun

a mark or impression of the ventral surface of the last joint of the thumb.

Origin of thumbprint

First recorded in 1895–1900; thumb + print

Example sentences from the Web for thumbprint

British Dictionary definitions for thumbprint

thumbprint
/ (ˈθʌmˌprɪnt) /

noun

an impression of the upper part of the thumb, used esp for identification purposes See fingerprint