Arch. A curved set of lineations, without backward turn; a bow.
Bertillonage. Alphonse Bertillon’s anthropometric methods.
Bifurcation. Fork-like splitting into two branches.
Blur. A dull, smudgy imprint.
Bow. A curved lineation like a bow.
Bulb. The pad of a finger-tip.
Characteristic. Any striking feature in a pattern which gives distinctiveness.
Chirality. The principle involved in “Mirror Patterns.”
Composite. Patterns composed of various elements, such as arch, loop, or whorl.
Core. The heart or central portion of a finger-print.