also: an ink impression of the lines upon the fingertip taken for the purpose of identification
2
: something that identifies: such as
a
: a trait, trace, or characteristic revealing origin or responsibility
b
: analytical evidence (such 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
c
: the base-pair pattern in an individual's DNA obtained by DNA fingerprinting
Detectives found his fingerprints all over the gun.
Everyone has a unique fingerprint.
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Attempts to identify her by fingerprints were not successful.—Logan Smith, CBS News, 11 Apr. 2026 Smudges, fingerprints, and grease build up slowly, so try to gently lift them off instead of scrubbing them away.—Jessica Safavimehr, Southern Living, 11 Apr. 2026 The lock supports up to 16 users, each of whom can register four fingerprints, one face recognition scan, and one PIN code.—John R. Delaney, PC Magazine, 11 Apr. 2026 The team also dusted for fingerprints and searched for hairs, fibers and touch DNA evidence.—Amy McDaniel, Fort Worth Star-Telegram, 10 Apr. 2026 See All Example Sentences for fingerprint
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
fingerprint
2 of 2transitive verb
: to analyze (as spectrographically or chromatographically) in order to determine uniquely the identifying characteristics, origin, or constitution of
each protein was fingerprinted
fingerprintingnoun
Legal Definition
fingerprint
noun
fin·ger·print
: 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