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  • Arch - A fingerprint pattern in which the ridge pattern originates from one side of the print and leaves from the other side.
  • Core - A center of a loop or whorl
  • Delta - A triangular ridge pattern with ridges that go in different directions above and below a triangle.
  • Fingerprint - An impression left on any surface that consists of patterns made by the ridges on a finger.
  • Latent fingerprint - A hidden fingerprint made visible through the use of powders of other techniques.
  • Loop - A fingerprint pattern in which the ridge pattern flows inward and returns in the direction of the origin.
  • Minutiae - The combination of details in the shapes and positions of ridges in fingerprints that make each unique; also called ridge characteristics or "Galton details."
  • Patent fingerprint - A visible fingerprint that happens when fingers with blood, ink, or some other substance on them touch a surface and transfer the pattern of their fingerprint to that surface.
  • Plastic print - A three-dimensional fingerprint made in soft material such as clay, soap, or putty.
  • Ridge pattern - The recognizable pattern of the ridges found in the end joints of fingers that form lines on the surface of objects in a fingerprint. They fall into three categories: arches, loops, or whorls.
  • Ten card - A form used to record and preserve a person's fingerprints.
  • Whorl - A fingerprint pattern that resembles a bull's-eye pattern.