fingerprint

¹fin·ger·print

noun \-ˌprint\

Definition of FINGERPRINT

1

: the impression of a fingertip on any surface; especially : an ink impression of the lines on the fingertip taken for purpose of identification

2

: analytical evidence (as a spectrogram) that characterizes an object or substance; especially : the chromatogram or electrophoretogram obtained by cleaving a protein by enzymatic action and subjecting the resulting collection of peptides to two-dimensional chromatography or electrophoresis—compare dna fingerprinting

Illustration of FINGERPRINT