fingerprinting

noun | fin·ger·print

1. : the impression of a fingertip on any surface; also : an ink impression of the lines upon the fingertip taken for the purpose of identification (as during the booking procedure following an arrest) — see also dna fingerprinting : an ink impression of the lines upon the fingertip taken for the purpose of identification (as during the booking procedure following an arrest) — see also dna fingerprinting